Question

Find the lateral area of this cone.

Round to the nearest tenth.
Hint: Lateral Area of a Cone = url
Where l = slant height
15in
12in
[?] in2

Answer 1

565.5 in²

Explanation:

Lateral area of a cone is represented by,

Lateral surface area = πrl

Here 'r' = Radius of the circular base

l = lateral height of the cone

By this formula,

Lateral area = π(12)(15)

= 565.49

≈ 565.5 square inch

Therefore, 565.5 in² is the answer.