5
Answer: DSet 2: Area Volume (Advanced)
Explanation
PROBLEM
Recent studies show that a cone has radius 5 and height 12. What is its volume? (Express as a number times pi)
A cone has radius 5 and height 12. What is its volume? (Express as a number times pi)
A.
60pi
B.
300pi
C.
200pi
D.✓ Correct
100pi
Detailed Explanation
[Variation 1] Choice D is the best answer. Volume = (1/3) times pi times r squared times h = (1/3) times pi times 25 times 12 = 100pi
Why others are wrong:
A: 60pi is incorrect because it does not satisfy the equation.
B: 300pi is incorrect because it does not satisfy the equation.
C: 200pi is incorrect because it does not satisfy the equation.