Question

Find the perimeter of this figure. is 3.14 for π. write your answer as a decimal.

Answer 1

The figure is formed by a rectangle and a semi-circle.

Let's find the semi-circumference

`C=(\pi)(d)/(2)`

Where d = 11 and pi = 3.14.

`C=3.14\cdot(11)/(2)\approx17.27ft`

Then, we find the perimeter of the figure without including one side

`\begin{gathered} P=2(l+w) \\ \end{gathered}`

Where w = 5 and l = 11.

`P=2w+l=2\cdot5+11=10+11=21ft`

At last, we add the semi-circumference and the perimeter to find the total

`P_{\text{total}}=17.27+21=38.27ft`

Hence, the answer is 38.27 feet.