3.14(r^2)46=1.3

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Solution for 3.14(r^2)46=1.3 equation: 


Simplifying
3.14(r2) * 46 = 1.3

Reorder the terms for easier multiplication:
3.14 * 46r2 = 1.3

Multiply 3.14 * 46
144.44r2 = 1.3

Solving
144.44r2 = 1.3

Solving for variable 'r'.

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

Divide each side by '144.44'.
r2 = 0.009000276932

Simplifying
r2 = 0.009000276932

Take the square root of each side:
r = {-0.094869789, 0.094869789}

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