I need help Finding the area of a shaded region of a circle( pic will be inserted)

Question

anonymous · Answer

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anonymous · Answer

the formula for the area of a square = Length * width, 
The formula for the area of a circle = pi*r^2

anonymous · Answer

whats the area of the square?

anonymous · Answer

How do you find the radius?

anonymous · Answer

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anonymous · Answer

the circle is fully inside the square, meaning the diameter of the circle is 8

anonymous · Answer

raidus and diamater are related by the following: 
2*radius = Diameter

anonymous · Answer

The area of square is 8x8=64. The radius is half of the length of the diameter which is 8 so the radius = 4. Therefore the area of the circle is pi(4)^2= 16pi. Then subtract the area of the circle from the area of the square so ---> 64-16pi is the answer.

anonymous · Answer

Thank you that's the answer I got when I did the work!