Question 1036317
There are 5 squares.
The area of each is 4*4 = 16 sq cm
--> 80 sq cm
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The diameter of the circle is the hypotenuse of the right triangle with legs of 4 and 12
d^2 = 12^2 + 4^2 = 160
r^2 = 40
Area of the circle is pi*r^2 = 40pi sq cm
Shaded region = 40pi - 80 sq cm