Question 16
Find the area of the shaded region, in $\text{cm}^2$, in the diagram with a 10 cm horizontal diameter and a 20 cm base.
Diagram convention used: the 10 cm segment is a horizontal diameter; the 20 cm base is parallel to it and tangent to the circle, as drawn.

Diagram convention used: the 10 cm segment is a horizontal diameter; the 20 cm base is parallel to it and tangent to the circle, as drawn.
