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What is r in this equation? πr^2=42π
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What is r in this equation?
πr^2=42π

User Uche
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r in this equation refers to the radius


{\pi r}^(2) = 42\pi \\ {r}^(2) = (42\pi)/(\pi) \\ r = √(42 ) \\ r = 6.480740698
User Vishal Gupta
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