Question
A cone shaped megaphone has a radius of 15 cm in a slant height of 20 cm. A megaphone has an open bottom. That what is the lateral surface area of a megaphone, square centimeters? Use 3.14 for pi.
1. 942 square centimeters.
2. 1884 square centimeters.
3. 1648.5 square centimeters.
4. 109.9 square centimeters.
1. 942 square centimeters.
2. 1884 square centimeters.
3. 1648.5 square centimeters.
4. 109.9 square centimeters.
Answers
GPT 3.5
The lateral surface area of a cone can be found using the formula:
Lateral surface area = π * radius * slant height
Plugging in the given values:
Lateral surface area = 3.14 * 15 cm * 20 cm
Lateral surface area ≈ 942 square centimeters
Therefore, the correct answer is option 1. 942 square centimeters.
Lateral surface area = π * radius * slant height
Plugging in the given values:
Lateral surface area = 3.14 * 15 cm * 20 cm
Lateral surface area ≈ 942 square centimeters
Therefore, the correct answer is option 1. 942 square centimeters.