Geometry Problem

Click the figure below to see the complete problem 490 about Tangent Circles, Arc, Radius, Circular Sector, Area.

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Complete Problem 490

Level: High School, SAT Prep, College geometry

## Monday, August 2, 2010

### Problem 490: Tangent Circles, Arc, Radius, Circular Sector, Area

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using outer ang

ReplyDeleteS = 4π

/_FBD=150 so /_ABC=30. /_CAB=130 so /_ACB=20 or /_ECF=160=8∏/9 which makes x=(1/2)(r^2)(θ)=(1/2)*(3)^2*(8∏/9)=4∏

ReplyDeleteVihaan, Dubai