Question

What is the distance around the outside of this shape? *

Answer 1

A)
`21.42`

Explanation:

Find the half-circumference of the semi-circle:

`(1)/(2)C=(1)/(2)(\pi d)\\ \\(1)/(2)C=(1)/(2)(6\pi)\\ \\ (1)/(2)C=3\pi`

Add this to the partial perimeter of the rectangle:

`3+6+3+3\pi=12+3(3.14)=12+9.42=21.42`