Question

Find the lateral area of this cone.

Answer 1

Answer:

Lateral is 180π

SURFACE AREA IS 340π

Step-by-step explanation:

Answer 2

Given:

Radius of the base of the cone = 12 in.

The slant height of the cone = 15 in.

To find:

The lateral surface area of the given cone.

Solution:

The lateral surface area of the cone is:

$LA=\pi rl$

Where, r is the radius of the base of the cone and h is the slant height of the cone.

Putting $r=12,h=15$, we get

$LA=\pi (12)(15)$

$LA=180\pi$

The lateral surface area of the cone is 180π in ² and the missing value for the blank is 180.