V=3.14*r*r*12

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Solution for V=3.14*r*r*12 equation: 


Simplifying
V = 3.14r * r * 12

Reorder the terms for easier multiplication:
V = 3.14 * 12r * r

Multiply 3.14 * 12
V = 37.68r * r

Multiply r * r
V = 37.68r2

Solving
V = 37.68r2

Solving for variable 'V'.

Move all terms containing V to the left, all other terms to the right.

Simplifying
V = 37.68r2

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