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Simplifying 621.72 = 2 * 3.14r2 * 2 * 3.14r * 18.1 Reorder the terms for easier multiplication: 621.72 = 2 * 3.14 * 2 * 3.14 * 18.1r2 * r Multiply 2 * 3.14 621.72 = 6.28 * 2 * 3.14 * 18.1r2 * r Multiply 6.28 * 2 621.72 = 12.56 * 3.14 * 18.1r2 * r Multiply 12.56 * 3.14 621.72 = 39.4384 * 18.1r2 * r Multiply 39.4384 * 18.1 621.72 = 713.83504r2 * r Multiply r2 * r 621.72 = 713.83504r3 Solving 621.72 = 713.83504r3 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-713.83504r3' to each side of the equation. 621.72 + -713.83504r3 = 713.83504r3 + -713.83504r3 Combine like terms: 713.83504r3 + -713.83504r3 = 0.00000 621.72 + -713.83504r3 = 0.00000 Add '-621.72' to each side of the equation. 621.72 + -621.72 + -713.83504r3 = 0.00000 + -621.72 Combine like terms: 621.72 + -621.72 = 0.00 0.00 + -713.83504r3 = 0.00000 + -621.72 -713.83504r3 = 0.00000 + -621.72 Combine like terms: 0.00000 + -621.72 = -621.72 -713.83504r3 = -621.72 Divide each side by '-713.83504'. r3 = 0.8709575254 Simplifying r3 = 0.8709575254 Reorder the terms: -0.8709575254 + r3 = 0.8709575254 + -0.8709575254 Combine like terms: 0.8709575254 + -0.8709575254 = 0.0000000000 -0.8709575254 + r3 = 0.0000000000 The solution to this equation could not be determined.
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