Math help


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A circle is inscribed in a square, if the area of the circle is 4π (pie or pi however you prownounce/spell it) what is the total area of the shaded regions

i attached a pic :p

help is appriciated, i am just trying to help a friend with his geometry homework. :)

post-7-1074735138.png

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You know the area of the circle. Take the formula that calculates the area of the circle and get the radius from it. 2 times the radius is the length of a side of the square. You can get the area of the square. Subtract the area of the circle from the square.

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Area of grey = (16-4pi)

Area of circle is Pi(radius)^2, therefore, each side of the square is 4 units long. Area of square is 16 units^2, minus area of circle (4pi), is...

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