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Simplifying
1492.2536 = 4 * 3.14R2
Multiply 4 * 3.14
1492.2536 = 12.56R2
Solving
1492.2536 = 12.56R2
Solving for variable 'R'.
Move all terms containing R to the left, all other terms to the right.
Add '-12.56R2' to each side of the equation.
1492.2536 + -12.56R2 = 12.56R2 + -12.56R2
Combine like terms: 12.56R2 + -12.56R2 = 0.00
1492.2536 + -12.56R2 = 0.00
Add '-1492.2536' to each side of the equation.
1492.2536 + -1492.2536 + -12.56R2 = 0.00 + -1492.2536
Combine like terms: 1492.2536 + -1492.2536 = 0.0000
0.0000 + -12.56R2 = 0.00 + -1492.2536
-12.56R2 = 0.00 + -1492.2536
Combine like terms: 0.00 + -1492.2536 = -1492.2536
-12.56R2 = -1492.2536
Divide each side by '-12.56'.
R2 = 118.81
Simplifying
R2 = 118.81
Take the square root of each side:
R = {-10.9, 10.9}
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