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

Labels:
area,
circular segment,
congruence,
intersecting circles,
tangent

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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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