pi*(r^2*16)=500

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Solution for pi*(r^2*16)=500 equation:


Simplifying
pi(r2 * 16) = 500

Reorder the terms for easier multiplication:
ip(16r2) = 500

Remove parenthesis around (16r2)
ip * 16r2 = 500

Reorder the terms for easier multiplication:
16ip * r2 = 500

Multiply ip * r2
16ipr2 = 500

Solving
16ipr2 = 500

Solving for variable 'i'.

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

Divide each side by '16pr2'.
i = 31.25p-1r-2

Simplifying
i = 31.25p-1r-2

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