Circumference and Area of Circles

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Questions

• What is the circumference of a 15-inch circle if the diameter of a circle is directly proportional to its radius and a circle with a 2-inch diameter has a circumference of approximately 6.28 inches?
• If the radius of a circle is 4cm, what is the area?
• How do you find the circumference of a circle with a diameter of 6 cm?
• How much will it cost to paint a circular sign with a radius of 4 feet if the painter charges $1.50 per square foot?
• What is the circumference of a circle with a radius of 30 inches?
• Write the equation of a circle with a center at (-3,-4) and a radius of 3?
• What is the perimeter of a quadrant of a circle with radius 3cm?
• I am installing a 1 yard-wide walk around circular swimming pool that is 21 ft in diameter. What is the area of the walk?
• What is the circumference of a circle with radius of 30 inches?
• What is the equation of a circle with a center at (-3, -4) and a radius of 3?
• How do you find the radius of a circle when given its circumference?
• How would you find the radius of a circle with an area of 50.24?
• How can you find the radius of a circle from the area?
• How do I find the radius of a circle from its circumference?
• How do you calculate the area of a circle with a radius of 5cm?
• How does doubling the radius of a circle affect its area?
• How does the radius of a circle change if the circumference is doubled?
• How do you find the radius of a circle given the length of an arc?
• If the radius of a circle is tripled, how does the circumference change?
• What is the radius of a circle whose circumference is #16π#?
• What is the radius of a circle whose diameter is 13 units?
• What the radius of a circle with area 9?
• What is the area of a circle with radius of 10 cm?
• Whats the diameter of a circle? Is it the distance to the middle of the circle or the distance all the way across the circle?
• If the diameter of a circle is 20cm, what is the area?
• How would I find the diameter of a circle when area is given?
• The diameter of a circle is 2 centimeters. What is the circle's radius?
• A piece of wire 20 cm long is cut into two pieces , one of which is bent into a circle and the other into a square enclosing it. What is the length of the diameter of the circle?
• The circumference of a circle is #8pi# cm. What is the diameter of the circle?
• If the diameter of a circle is #1.3*10^-12# meters, then what is its radius?
• If the diameter of the circle is 5 cm, what is the circumfrence and area of the figure?
• Is the diameter of a circle always twice the radius?
• The diameter of a circle is 4 miles. What is the circle's radius?
• What is the area of a circle, if the diameter is 18?
• What is the relationship between the circumference and diameter of a circle?
• What is the diameter of a circle if its circumference is 80cm?
• What is the area of a circle that has a diameter of 24?
• If the diameter of a circle is 28.9 m, what is the area?
• If the radius of a circle is 10 feet, what is the diameter?
• The diameter of a circle is 9 cm. What is the area of the circle?
• What would be the circumference of a circle with a diameter of 10 inches?
• What is the difference between radius & diameter?
• How do you find diameter from the circumference of a circle?
• The diameter of a circle is 5 ft. What is the area of the circle?
• If the diameter of a circle is 14, what is the area?
• If the diameter of a circle is 22, what is the circumference?
• What is the circumference of a circle with a diameter of 50 mm?
• If the radius of a circle is 55 inches, what is the area, circumference, and the diameter?
• The diameter of a circle is 40 m. What is the area of the circle in terms of #pi#?
• The radius of a circle is 6.5. What is the diameter, circumference, and area?
• What is the diameter of a circle with a 6.7 cm circumference?
• If a circle has a radius of 15 inches, what is the diameter of the circle?
• How can I find diameter of a circle?
• How does the circumference of a circle change when its diameter is tripled?
• How does the circumference of a circle change when its diameter is doubled?
• How does doubling the diameter of a circle change its area?
• How do you find diameter of a circle with circumference?
• How do you find diameter of a circle with area?
• What is the diameter of a circle whose area is #16##pi#?
• What is the diameter of a circle whose circumference is 5?
• What is the diameter of a circle whose radius is 11?
• What is the diameter of a circle whose radius is 2.3?
• What is the equation for circumference?
• How do you find the circumference of the circle #x^2 + y^2 = 28#?
• What is the circumference of the circle whose equation is #(x-9)^2+(y-3)^2=64#?
• What's the formula for circumference of a circle?
• What is an equation that relates the circumference of a circle as a function of its diameter?
• How is the formula for the circumference of a circle derived?
• What is the circumference of a circle with a radius of 3?
• How do you find the volume of a 52 cm diameter spherical balloon?
• How do you find the circumference and area of the circle whose equation is #x^2+y^2=36#?
• What is the circumference of a circle with a diameter of 16 in?
• How do you find the diameter from a circumference of 20?
• If a circle has the diameter of 8, what is the circumference?
• What is the approximate circumference of a circle with the radius 3?
• If a circle has a diameter of 4 inches, what is the circumference?
• What is the circumference of a circle whose diameter is 12 yards?
• What is the circumference of a circle that has a diameter of 1.54 inches?
• What is the circumference of a circle with a radius of 11?
• What is the circumference of a circle with area = #36 pi# #cm^2#?
• What is the area of a circle if the circumference is 48 ft?
• If #pi# equals #22/7# and the radius of a circle is #1##3/4# in, what is the circumference?
• If the radius of a circle is 6 inches, what is the circumference?
• What is the circumference and area in feet of circular pool that has a diameter of 20 yards?
• What is the circumference and the area of a circle that has a diameter of 35 cm?
• What is the circumference of a circle with an area of #49 pi# #i##n##ches^2#?
• The radius of a pie measures 17 cm. What is the circumference of the pie?
• What is the circumference of a circle whose area is #16pi#?
• What is the exact circumference of a circle with a diameter of 37 inches?
• As the diameter of the circle increases what happens to the circumference?
• What is the circumference of a circle with a radius of 9 cm?
• What is the circumference of a circle when the diameter is 18?
• Given a circle with a diameter of 6, what is the circumference?
• How do you find the circumference of a circle with a diameter of 7.5 in?
• What is the circumference of a circle with a radius of 34 inches?
• Maria's pie shop is selling small apple pies with a diameter of 6 inches for $3.99 and large apple pies with a diameter of 12 inches for $6.99. Which pie is the better buy?
• Basketball rims have a diameter of 18 inches. If you want to put a band around a basketball rim, how much material to the nearest tenth of an inch will you need?
• A chord with a length of #5 # runs from #pi/12 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #3 # runs from #pi/12 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #12 # runs from #pi/12 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #12 # runs from #pi/12 # to #pi/8 # radians on a circle. What is the area of the circle?
• A chord with a length of #1 # runs from #pi/12 # to #pi/8 # radians on a circle. What is the area of the circle?
• A chord with a length of #2 # runs from #pi/12 # to #pi/8 # radians on a circle. What is the area of the circle?
• A chord with a length of #5 # runs from #pi/12 # to #pi/8 # radians on a circle. What is the area of the circle?
• A chord with a length of #9 # runs from #pi/12 # to #pi/8 # radians on a circle. What is the area of the circle?
• A chord with a length of #8 # runs from #pi/12 # to #pi/8 # radians on a circle. What is the area of the circle?
• A chord with a length of #4 # runs from #pi/12 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #4 # runs from #pi/4 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #3 # runs from #pi/4 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #15 # runs from #pi/4 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #15 # runs from #pi/8 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #1 # runs from #pi/8 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #7 # runs from #pi/8 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #5 # runs from #pi/8 # to #pi/3 # radians on a circle. What is the area of the circle?
• A chord with a length of #9 # runs from #pi/8 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #3 # runs from #pi/8 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #4 # runs from #pi/8 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #8 # runs from #pi/8 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #6 # runs from #pi/8 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #35 # runs from #pi/8 # to #pi/6 # radians on a circle. What is the area of the circle?
• A chord with a length of #35 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #3 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #1 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #6 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #5 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #4 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #9 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #16 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #13 # runs from #pi/8 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #13 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #1 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #2 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #3 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #5 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #6 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #8 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #18 # runs from #pi/12 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #18 # runs from #pi/4 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #2 # runs from #pi/4 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #1 # runs from #pi/4 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #5 # runs from #pi/4 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #12 # runs from #pi/4 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #16 # runs from #pi/4 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #16 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #15 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #12 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #1 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #4 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #6 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #14 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #24 # runs from #pi/3 # to #pi/2 # radians on a circle. What is the area of the circle?
• A chord with a length of #24 # runs from #pi/3 # to #(5 pi )/6 # radians on a circle. What is the area of the circle?
• Question #335b3
• Question #94a03
• Question #6ab7b
• Knowing the extreme points of a diameter in circle are #A(-3,1) and D(2,5)#, find the canonical equation of a circle?
• Calculate the radius and the area of the brick region?
• Calculate the area a brick region? The length from the base of the rectangle to the top of the arc is called "Sagita". The small side of the bridge into the sagita, #e=21#.
• Question #9757e
• Two overlapping circles with equal radius form a shaded region as shown in the figure. Express the area of the region and the complete perimeter (combined arc length) in terms of r and the distance between center, #D#? Let #r=4 and D=6# and calculate?
• A regulation baseball (hardball) has a great circle circumference of 9 inches; a regulation softball has a great circle circumference of 12 inches. a. Find the volumes of the two types of balls. b. Find the surface areas of the two types of balls?
• Find an expression for the area of the shaded region? Now let r= 4 cm, calculate the area?
• A pizza with a diameter of 18 inches is cut into 10 equal slices. To the nearest square inch, what is the area of each slice of the pizza?
• How do I find the approximate area of the shaded portion?
• What is the circumference of a circle with a radius of 5?
• How do you find the area of a circle with a radius of 2 cm?
• Question #9c3ae
• Question #2d1d2
• Question #bf75f
• Question #de4c6
• Question #df371
• A circle is inscribed in a square, which means that each side of the square touches the circle at exactly one point. If the area of the circle is 144pi, what is the length of the diagonal?
• Find the center and diameter of the circle below?
• Question #7e75c
• Question #3e00c
• What is the area of a circle, whose radius is #3cm.#?
• Find the area of the shaded figures?
• 6 equal circular discs placed so that their centres lie on the circumference of a given circle with radius (r), and each disc touches its 2 neighbours. What is the radius of a 7th disc placed in the centre which will touch each of the each existing ones?
• How do you find the circumference of a circle with a radius of 0.5 meters?
• To the nearest kilometer, how far would you go if you traveled along the circumference of the equator, assuming the equator is a circle with a radius of kilometers?
• The area of a circle is 20 square centimeters. What is its circumference?
• How do we arrive at the formula for area of a circle as #pir^2#?
• Given an octagon inscribed in a square of side, #s# express the shaded area i terms of s? Hint the intersecting circles quarter circles have radius that are related to the diagonal of the square...
• The Goode family built a rectangular swimming pool in their backyard. The floor of the pool has an area of #485 5/8# square feet. If the width of the pool is #18 1/2# feet, what is the length of the pool?
• Calculate the area of the shaded region? This question please about radians, i would appreciate your help
• What is the area of a 60° sector of a circle with area #42pim^2#?
• The area of a circle is 16pi. What is the circumference of the circle?
• Given an ellipse with major and minor axis of #a# and #b# find the area of the ellipse? Show your work. the perimeter of the ellipse is rather difficult to derive in closed form, discuss how you would approach it?
• Circle R has diameter ST with endpoints S(4, 5) and T(-2, 3). What are the circumference and area of the circle?
• How do you find circumference of circle with radius 3?
• How do you find the area and the circumference of a circle with diameter 2 yd?
• How do you find the area of a circle with a diameter of 6?
• A circle has a radius of 6 cm. What is its circumference?
• A smaller circle touches a larger circle internally and passes through the center #O# of the larger circle. If the area of the smaller circle is #200 cm^2#, what is the area of the larger circle in #cm^2#?
• Question #02ef3
• The radii of two concentric circles are 16 cm and 10 cm. #AB# is a diameter of the bigger circle. #BD# is tangent to the smaller circle touching it at #D#. What is the length of #AD#?
• The diameter of a small pizza is 16 centimeters. This is 2 centimeters more than two fifths of the diameter of a large pizza. How do you find the diameter of the large pizza?
• The area of a circle is 16 pi cm2. What is the circle's circumference?
• What is the approximate area of a 70° sector of a circle with a radius of 8 inches?
• The circumference of a circle is 50.24 centimeters. How do you find the area of the circle?
• Question #0262a
• How do you find the radius of a circle if the circumference is #29pi#?
• The area of a circle is 28.26 in. What is the circumference of that circle?
• What is the radius of a circle whose area is 154 square centimeters?
• The circumference of a circle is #12pi#cm. How do you find the a) Diameter: b) Radius: c) Area of the circle in terms of #pi#?
• The circumference of a circular field is 182.12 yards, what is the radius of the field?
• Question #1cea0
• What is the area of a circle with a radius of 3 cm?
• A circle has a circumference of #3600pi# What is the diameter of the circle?
• Suppose the circumference of a circle is #6pi#. What is its radius?
• A saucer has a radius of 8 cm. A plate has a radius of 12 cm. How much greater circumference of the plate than the circumference of the saucer?
• The circumference of a circle 20cm. What is the radius of the circle?
• If circumferences of two circles are in the ratio #3:1#, what is the ratio of their areas?
• What is the circumference of a circle with a diameter of 4 cm?
• The radius of a circle is 2 inches. What is the circle's area?
• Question #d2fe1
• The length of the radius of two circles are 5 cm and 3 cm. The distance between their center is 13 cm. Find the length of the tangent who touches both the circles?
• Question #88586
• Question #a3679
• Question #6455f
• Two circles having equal radii #r_1# and touching a line #l#on the same side of #l# are at a distance of #x# from each other. Third circle of radius #r_2# touches the two circles. How do we find the height of third circle from #l#?
• Question #9a0a7
• Question #b7d7b
• The diameter of a circle is 14 ft. What is the area of the circle?
• The area of a square is #40# #i n ^2#. If the length of each side of the square is #2x# #i n#, what is the value of #x#?
• A circle has a radius of 9 inches. The is radius is multiplied by #2/3# to form a second circle. How is the ratio of the areas related to the ratio of the radii?
• A square has a side length of #3x# inches and an area of #324# #i n^2#. What is the value of #x#?
• The circumference of a circle is #11pi# inches. What is the area, in square inches, of the circle?
• A rectangular pool has an area of #750# #ft^2#. The length is 16 feet longer than the width. What are the dimensions of the pool?
• What is the area of a circle with diameter, d = 3.4m ?
• Question #ab8e4
• How do you calculate the circumference of a circle if the radius measures 8 inches?
• Question #5989d
• How do you calculate the area of a semicircle with a radius of 7 cm?
• Question #933e0
• Question #650b3
• Question #f8b6b
• Question #5e822
• Question #9c7d8
• Question #52715
• Question #96a15
• Question #89620
• If the radius of a circle is reduced by 50 percent, by what percent is its area reduced?
• Question #74578
• Question #14706
• What is the exact area of a circle with a diameter of 10?
• A circle has center at #(0,0)# and passes through #(-12,0)#, what is its circumference and area?
• What's the circumference of a 15 inch bicycle wheel?
• Question #20484
• Question #0c93b
• Find the area of the smaller region bounded by the circle with equation #x^2 + y^2=25#, and the lines #y = 1/3x# and #y = -1/3x#?
• Question #11e0a
• Question #1d57b
• Question #ccab4
• Question #6cea7
• A circle has a radius of #6x^9y^5#. The area of a circle can be found using A = Pi(radius)^2. What is the area of this circle in square centimeters?
• What is the circumference of a circle with diameter 5 inches?
• Question #e45d8
• Question #0f210
• The radius of the larger circle is twice as long as the radius of the smaller circle. The area of the donut is 75 pi . Find the radius of the smaller (inner) circle.?
• Question #14fe5
• Question #a5417
• Question #4927a
• What is the circumference of a circle that has radius #7"cm"# ?
• Question #5154e
• Question #aa340
• If a circle has a circumference of 10 pie what is the circle's diameter?
• Given a circle with a diameter of 6, what is the circumference in pi?
• How do you find the circumference of a circle with diamete of 33cm? Give your answer in terms of pi.
• If the diameter is #"9 cm"#, what is the radius?
• The circumference of a circle is 18.84 millimeters. What is the circle's diameter? C=18.84 mm Use 3.14 for ​𝜋.