3.14*r^2=132

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Solution for 3.14*r^2=132 equation: 


Simplifying
3.14r2 = 132

Solving
3.14r2 = 132

Solving for variable 'r'.

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

Divide each side by '3.14'.
r2 = 42.03821656

Simplifying
r2 = 42.03821656

Take the square root of each side:
r = {-6.4836885, 6.4836885}

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