Question

Consider the figure.

Find the area of the composite figure to the nearest half unit. Use 3.14 for π

Answer 1

The answer is 23.5 cm squared

Answer 2

23.5 cm^2

Explanation:

First calculate the "rectangle" with the half-circle filled in

9*3 = 27

Then calculate the half-circle using the formula for the area of a circle
`\pi r^(2)`, then dividing it by half

3.14 * 1.5 * 1.5 / 2 = 3.5325

Subtract the area of the half-circle from the area of the rectangle

27-3.5325

= 23.4675

= 23.5 (cor. to the nearest half unit)