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March 4, 2015

March 4, 2015

Posted by **anchal** on Monday, March 4, 2013 at 11:11am.

- maths -circle -
**Steve**, Monday, March 4, 2013 at 12:02pmYou know that the area of a segment is

a = 1/2 r^2 (θ-sinθ)

Draw a diagram. It is clear that

sin θ/2 = 5/5√2, so θ/2 = π/4

Now plug and chug

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