Surface Area of Cones Quick Check
5 of 55 of 5 Items
Question
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
1,884 square centimeters
1,884 square centimeters
109.9 square centimeters
109.9 square centimeters
942 square centimeters
942 square centimeters
1,648.5 square centimeters
The test answers are:
1- 785
2- 1,354.125
3- 452.16
4- 226.08
5- 942
I hope whoever see's this trusts me bc all of these are right for Surface Area of Cones Quick Check. I got # 5 wrong then looked at the answer, so you have it. I hate it when the bot gives you wrong answers. These are right as of 11/6/2023 8th grade. Have an awesome day!
P.s if these were right click the thumbs up button-E
1,884 square centimeters
Bot you're wrong
The correct answer is 942
W baddie E very big W
To find the lateral surface area of a cone, you need to know the slant height and the radius.
The formula for the lateral surface area of a cone is: Lateral Surface Area = π * radius * slant height.
In this case, the radius is given as 15 centimeters and the slant height is given as 20 centimeters.
Plug these values into the formula:
Lateral Surface Area = 3.14 * 15 * 20
Calculating this equation, we get:
Lateral Surface Area = 942 square centimeters.
Therefore, the correct answer is 942 square centimeters.