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Simplifying C = 2 * 3.14 * 15 Multiply 2 * 3.14 C = 6.28 * 15 Multiply 6.28 * 15 C = 94.2 Solving C = 94.2 Solving for variable 'C'. Move all terms containing C to the left, all other terms to the right. Simplifying C = 94.2
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