3.14r^2=169

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Solution for 3.14r^2=169 equation: 


Simplifying
3.14r2 = 169

Solving
3.14r2 = 169

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 = 53.82165605

Simplifying
r2 = 53.82165605

Take the square root of each side:
r = {-7.336324424, 7.336324424}

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