Question

What are the lateral area of the cone shown below? Round the answers to the nearest tenth. The figure is not drawn to scale.

Answer 1

A. LA=829.4 ft^2; SA=1,209.5 ft^2

Explanation:

Answer 2

The correct option is 1.

Explanation:

From the given figure it is clear that

`r=11ft`

`l=24ft`

The lateral area of cone is

`A_L=\pi rl`

`A_L=\pi * 11* 24`

`A_L=829.380460548`

`A_L\approx 829.4ft^2`

The surface area of cone is

`A_S=\pi rl+\pi r^2`

`A_S=\pi * 11* 24+\pi * 11* 11`

`A_S=1209.51317163`

`A_S\approx 1209.5ft^2`

Therefore option 1 is correct.