Geometry Problem
Click the figure below to see the complete problem 453 about Intersecting Circles, Tangent, Circular Segment, Congruence, Area.
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Complete Problem 453
Level: High School, SAT Prep, College geometry
Friday, May 14, 2010
Problem 453: Intersecting Circles, Tangent, Circular Segment, Congruence, Area
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join O' to O, D, A. extend CO to G
ReplyDelete▲COO' = ▲ADO'
1) OC = OO' = AO' = DO' = R
2) OCO' = CAO' = 1/4 circumference ( arcGAO' = arcCBO')
=>
3) COO' = AO'D = 90°
=>
AD = CO'
=>
S = S'
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