Determine the area of the shaded region

Question

Diagram: https://ibb.co/Rj5QCWb

Answer 1

The radius of the whole circle is 5m

Given the formula for the area of a circle is: Pi X radius squared

Therefore: 5he area for the whole circle is 5²Xpi=25pi

The radius of the smaller, blue circle is 4m

Using the same formula for the area of a circle, the area of the blue circle is 4²X pi=16pi

The area of the shaded region=area of the bigger circle-area of smaller circle

area of the shaded region=25pi-16pi

area of the shaded region=9pi meters² or approximately 28.27 square meters