3
Answer: ASet 3: Area Volume (Advanced)
Explanation
PROBLEM
A cylinder has radius 5 and height 7. What is its volume? (Express as a number times pi)
A cylinder has radius 5 and height 7. What is its volume? (Express as a number times pi)
A.✓ Correct
175pi
B.
180pi
C.
70pi
D.
25pi
Detailed Explanation
Choice A is the best answer. Volume = pi times r squared times h = pi times 5 squared times 7 = 175pi
Why others are wrong:
B: 180pi is incorrect because it does not satisfy the equation.
C: 70pi is incorrect because it does not satisfy the equation.
D: 25pi is incorrect because it does not satisfy the equation.