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)
Responses
1,648.5 square centimeters
1,648.5 square centimeters
942 square centimeters
942 square centimeters
109.9 square centimeters
109.9 square centimeters
1,884 square centimeters
The lateral surface area of a cone is given by the formula S = πrs, where r is the radius of the base and s is the slant height.
In this case, the radius is 15 centimeters and the slant height is 20 centimeters.
Plugging these values into the formula, we get:
S = π(15)(20)
S = 942 square centimeters.
Therefore, the correct answer is 942 square centimeters.