Central, Inscribed, and Circumscribed Angles

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Questions

• Why perpendicular bisectors of any triangle intercept in the center of circumscribed circle?
• What is the area of a semicircle with radius #8# cm?
• If one of the sides of a right angled triangle, whose all sides have integral values, is #12#, then what is the largest possible radius of its incircle?
• Prove that the largest isosceles triangle that can be drawn in a circle, is an equilateral triangle?
• Question #00f2d
• Question #af2a7
• Question #19822
• ABC is a Right Triangle ,right angled at B. C(o,r) is the incircle and o is the incenter of the triangle.AB=5,BC=12,what is the radius of incircle?
• Damari is constructing an equilateral triangle inscribed in a circle and has gotten this far. What is his next step?
• This figure shows circle O with diameter QS . mRQS=290∘ What is the measure of ∠ROS ?
• This figure shows circle A with inscribed ∠RSQ . m∠RSQ=24° What is the measure of RSQ?
• In the figure, YX−→− is a tangent to circle O at point X. mXB=52∘ mXA=104∘ What is the measure of ∠XYA ?
• AC←→ is tangent to the circle with center at B. The measure of ∠ACB is 24°. What is the measure of ∠ABC?
• Chord AC intersects chord BD at point P in circle Z. AP=4 cm BP=5 cm PC=8 cm What is PD?
• Question #373aa
• Question #6c63a
• Question #15b51
• Question #6547a
• Question #7d6b2
• In a circle of radius #'r'#, chords of lengths #a# and #b# cms, subtend angles #q# and #3q# respectively at the centre, then #r = asqrt(a/(2a-b))# cm. True or False?
• Question below?
• What is the measure of angle a?