Question

The volume of a cone is 3x3 cubic units and its height is x units.

Which expression represents the radius of the cone's base, in units?

Answer 1

r=3x/√π

Explanation:

V=πr²h /3

V=3x³, h=x, r=?

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3x³=πr²x/3

πr²=9x²

r²=9x²/π

r=3x/√π