Question 9
Question 25. Two semicircles are inscribed in a square with the area of $400\text{ cm}^2$, as shown. Find the area of the shaded region. (Use the approximation 3.14 for $\pi$.)
**Editorial input convention:** Enter the shaded area in square centimetres, using 3.14 for pi as instructed, as a number only.
**Editorial input convention:** Enter the shaded area in square centimetres, using 3.14 for pi as instructed, as a number only.