Using 3.14 for pi, what is the volume of a sphere with a radius of 3, rounded to the nearest tenth?
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Correct answer to question 194 (Mathematics Knowledge): 113.0
Method
A sphere's volume is four thirds times pi times the radius cubed. That is 4/3 x 3.14 x 27, which comes out to about 113.0. Using one third instead of four thirds gives 28.3.
Updated: November 2026
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