Question

a square ABCD is given . and at the corner of the square, there are a 2 quarter circle and at the center, a circle of diameter of 30cm is given. Find the area of the unused area of the square.

Answer 1

I'm assuming the 30 cm circle is perfectly fitting the square, correct?

Answer 2

If that is the case, then that would mean that the sides of the square also measure out to be 30 cm. The area of the square would be 30*30=900 cm^2. From 900, you would subtract the area of the circle. 900 - pi(15)^2 = (use a calculator). For the final step, I would then subtract the area of the quarter circles or whatever you're talking about in the corners. I'd help you out in solving for that, but not enough information is given :/

Answer 3

Not saying that it's not possible. You just worded the information about the corners in a strange way that I don't understand.

Answer 4

... ?