Two cones have equal volumes. The radius of the first is twice that of the second. What is the ratio of the height of the first cone to the height of the second cone?
Class 9Volume of a ConeMensuration
A1 : 4
B4 : 1
C1 : 2
D2 : 1
Step-by-Step Solution
Equal V: 31 π r12h1=31 π r22h2. With r1=2r2:4r22h1=r22h2⇒h2h1=41.
Answer: A) 1 : 4
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