3
Answer: CSet 2: Area Volume (Advanced)
Explanation
PROBLEM
A cylinder has radius 3 and height 2. What is its volume? (Express as a number times pi)
A cylinder has radius 3 and height 2. What is its volume? (Express as a number times pi)
A.
12pi
B.
21pi
C.✓ Correct
18pi
D.
9pi
Detailed Explanation
Choice C is the best answer. Volume = pi times r squared times h = pi times 3 squared times 2 = 18pi
Why others are wrong:
A: 12pi is incorrect because it does not satisfy the equation.
B: 21pi is incorrect because it does not satisfy the equation.
D: 9pi is incorrect because it does not satisfy the equation.