The cone shown has a diameter of 18 m and a slant height of 15 m which choice is closest to the lateral surface area

is the required lateral surface area of the cone.

Step-by-step explanation:

The lateral surface area of cone is:

Slant height is l which is

We have given diameter 18 m

Since, radius is half of diameter so r=18/2 =9

Slant height l =15

On substituting the values in the formula we get:

On simplification we get:

Further simplification will give:

is the required lateral surface area of the cone.