Question

Find the outer permit of this figure and round to the nearest hundredth.

Answer 1

Step 1

We first find the circumference of the hemisphere

Circumference of a semicircle

`\begin{gathered} Circumference\text{ of a semicircle = }\pi r \\ \text{Diameter = 8} \\ \text{Radius is half Diameter =4} \\ \\ Circumference\text{ of a semicircle =}3.14*4 \\ Circumference\text{ of a semicircle =}12.56ft \end{gathered}`

Step 2

We have to sum all the outer sides

10ft + 6ft + 12.56ft

The outer perimeter of the figure is 28.56ft