Question

Can anybody solve this?

Answer 1

Given:

The radius of the inner circle is 13 yards.

The width of the outer circle is 8 yards.

We need to determine the area of the composite figure.

Radius of the composite figure:

The radius of the composite figure can be determined by adding the radius of the inner circle and the width of the outer circle.

Thus, we have;

`Radius=13+8`

`Radius=21`

Thus, the radius of the composite figure is 21 yards.

Area of the composite figure:

The area of the composite figure can be determined using the formula,

`A=\pi r^2`

Substituting π = 3.14 and r = 21, we get;

`A=(3.14)(21)^2`

`A=3.14(441)`

`A=1384.74`

Thus, the area of the composite figure is 1384.74 square yards.