Question

I got the first one I’m not sure of the other 2

Answer 1

Given

The regular pentagon whose side is, 4ft.

And, the apothem of the pentagon is approximately 2.75ft.

To find the perimeter and the area of the pentagon.

Step-by-step explanation:

It is given that,

The regular pentagon whose side is, 4ft.

And, the apothem of the pentagon is approximately 2.75ft.

Since a regular pentagon has equal sides.

Then, the perimeter of the pentagon is,

`\begin{gathered} Perimeter=5* side \\ =5*4 \\ =20ft \end{gathered}`

Also, the area of the pentagon is,

`\begin{gathered} Area=(1)/(2)* Perimeter* apothem \\ =(1)/(2)*20*2.75 \\ =27.5ft^2 \end{gathered}`

Hence, the area of the regular pentagon is 27.5ft^2.