A cone shaped megaphone has a radius of 15 cm and a slant height of 20 cm. And megaphone has an open bottom. What is the lateral surface area of the megaphone and square square centimeters? Use 3.14 for pi.

Answer 1

The lateral surface area of a cone can be calculated using the formula:
Lateral Surface Area = π * r * l

Where:
r = radius of the cone = 15 cm
l = slant height of the cone = 20 cm

Plugging in the values, we get:
Lateral Surface Area = 3.14 * 15 * 20
Lateral Surface Area = 942 square centimeters

Therefore, the lateral surface area of the megaphone is 942 square centimeters.