Using 3.14 for pi, what is the volume of a cylinder with a radius of 4 and a height of 9?
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Correct answer to question 191 (Mathematics Knowledge): 452.16
Method
A cylinder's volume is the area of its circular base times its height. The base is 3.14 x 16 = 50.24, and multiplying by 9 gives 452.16.
Updated: November 2026
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