The base radii of two cones are in the ratio 3 : 4 and their heights are in the ratio 4 : 3. What is the ratio of their volumes?
Correct answer A. 3 : 4
Explanation
V is proportional to r²h. Ratio = (9 x 4) : (16 x 3) = 36 : 48 = 3 : 4.
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