The area of this square area is 4800 square meters. Let's assume that the side length of a square is r, that is, r 2 = 4800.

The area of a quarter circle is (1/4 * pi * R2) =1200pi, where pi is pi, and the value is about 3. 14.

The final answer is 1200 times 3. 14.

If you still don't understand, you can ask me again ~