Question

If the radius of the tube is 5 cm and the height is 53 cm, what is the approximate volume of the tube? Use 3 for pi.
189 cm3
795 cm3
3,975 cm3
333 cm3

Answer 1

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Answer 2

I love "use 3 for pi." The volume of a cylinder is the height times the area of the base, here pi (r)^2, pi times the square of r,

Volume = (3.14)(5 x 5)(53),

which means you are multiplying them all.

or recalculate using 3 instead of 3.14.

None of the answers given are correct, but one is close.

Old math joke is that the square root of 3 approaches 2 for large values of 3.

Congress once was said to have tried to make pi = 3 by law.