Trig circle area proble.

  • Thread starter onandon
  • Start date
  • #1
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Homework Statement


This is my own sketch of the problem. The radii are listed, and the circles are all tangent. I need to find the area of the blue part.

Homework Equations





The Attempt at a Solution


I've been staring at this for hours. I really have no idea where to start. I'm just looking for a push in the right direction.

Thanks for any help.

Homework Statement





Homework Equations





The Attempt at a Solution

 
Last edited:

Answers and Replies

  • #2
Join centers of the circles to form a triangle with sides of 11,9 and 10 units. As you can see this triangle contains blue part+ quarter of each circle.
thus area of the blue part is:
area of the triangle joining centers - 1/4*(area of each circle)
 
  • #3
3
0
Join centers of the circles to form a triangle with sides of 11,9 and 10 units. As you can see this triangle contains blue part+ quarter of each circle.
thus area of the blue part is:
area of the triangle joining centers - 1/4*(area of each circle)

Thanks a ton!
 

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