What is pi squared times pi?

Answer 1

n squared x n = n cubed but that does not equal 21.

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Here is the correct version:

We are looking for Pi squared times Pi which is Pi cubed

Now Pi can never be written out exactly because its decimal number goes on for ever. However we can take a good approximation to Pi as 3.142

So Pi cubed = 3.142 x 3.142 x 3.142 = 31.018339 = 31.02 to 4 places.

Answer 2

Pi squared times pi is equal to pi cubed (π^3).