Question of the Day

Can you answer today's question?

Register Next Tests:
11/8 , 12/6

Nov
12
2013
97,138 responses
Question of the Day Statistics
Number Answered
Correct 40,711
Incorrect 56,427
41% correct

Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer. 

A right circular cylinder has height 6 and volume 54 times pi. What is the circumference of its base?

Answer Choices

Hint

The volume of a cylinder with radius r and height h is equal to pi times (r^2) times h. From this formula, you can find the radius and then the circumference of the base of the cylinder.

Question of the Day

Can you answer today's question?

Register Next Tests:
11/8 , 12/6

Nov
12
2013
97,138 responses
Question of the Day Statistics
Number Answered
Correct 40,711
Incorrect 56,427
41% correct

Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer. 

A right circular cylinder has height 6 and volume 54 times pi. What is the circumference of its base?

Answer Choices

Answer

The volume of a cylinder with radius r and height h is equal to pi times (r^2) times h. Therefore, pi times (r^2) times (6) = 54 times pi and r^2 = 9, so the radius of the cylinder is 3. The circumference of a circle with radius r is equal to 2 times pi times r; therefore, the circumference of the base is equal to 6 times pi.