Question #a3679 Geometry Perimeter, Area, and Volume Circumference and Area of Circles 1 Answer jess_r Feb 7, 2017 Area: 81#pi# #cm^2# (or 254.34 #cm^2# if you use 3.14 for #pi#) Circumference: 18#pi# #cm# (or 56.52 #cm# if you use 3.14 for #pi#) Explanation: Use the formula Area = #pi##r^2# and the formula Circumference = 2#pi##r# Answer link Related questions What is the circumference of a 15-inch circle if the diameter of a circle is directly... 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... 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... 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? See all questions in Circumference and Area of Circles Impact of this question 2081 views around the world You can reuse this answer Creative Commons License