Question

What is the lateral surface area of the cone? A cone with diameter 18 centimeters, height of 12 centimeters, and slant height of 15 centimeters. L A = pi r l 108 pi centimeters squared 135 pi centimeters squared 180 pi centimeters squared 270 pi centimeters squared

Answer 1

424.12cm^2

Explanation:

make sure you have the radius, half of the diameter!

remember to use this formula! Lateral surface area = πrs = πr√(r2 + h2)

hope this helped!

r=radius

h=hight

s=slant

Answer 2

3051.08 cm squared

Explanation:

The equation to find lateral surface area of a cone:

SA = pi r sqrt(h^2 * r^2)

Plug your values in.

SA = 3.14 * 9 * sqrt(144*81)

SA = 3.14 * 9 * 108

SA = 3051.08

The lateral surface area is 3051.08 cm squared.