A cone-shaped megaphone has a radius of 15 centimeters and a slant height of 20 centimeters. A megaphone has an open bottom What is the lateral surface area of the megaphone in square centimeters? Use 3 14 for pi (1 point) O942 square centimeters 1.648.5 square centimeters
109.9 square centimeters
O 1,884 square centimeters
The lateral surface area of a cone can be found using the formula:
Lateral surface area = πrℓ
Where r is the radius and â„“ is the slant height.
Given that the radius (r) is 15 centimeters and the slant height (â„“) is 20 centimeters, we can substitute these values into the formula:
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.