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area

by vladmire » Mon Jan 19, 2009 9:31 am
I have a circle with a square inside. The side of the square = 2
Everything is shaded. How do I get the area of the shaded region?

I know that the area of the square is 4 but how do I get the area of the circle?
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by amitabhprasad » Mon Jan 19, 2009 10:23 am
Calculate diagonal of the square, which will be dia of the circle
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Re: area

by El Cucu » Mon Jan 19, 2009 3:38 pm
vladmire wrote:I have a circle with a square inside. The side of the square = 2
Everything is shaded. How do I get the area of the shaded region?

I know that the area of the square is 4 but how do I get the area of the circle?

Diagonal of the square is always side X square root of 2. So diagonal is 2square root of 2. Divided by 2 gives root of 2, so the area is 2 PI.
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