Two right circular cylinders have radii in the ratio 1:3 and heights in the ratio 4:1. What is the ratio of their volumes?
Show answer & explanation
Correct answer: B
Explanation
Ratio of radii = 1 : 3
Ratio of heights = 4 : 1
Volume = πr²h
Ratio = r² × h
= (1² × 4) : (3² × 1) = 4 : 9