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Nadusha1986 [10]
3 years ago
12

Solve the formula for the indicated variable. A = 4πr² for r when r > 0 r =

Mathematics
2 answers:
SashulF [63]3 years ago
8 0

Answer:

√(A/4π) = r

Step-by-step explanation:

A = 4πr²

r² = A/4π

r = √(A/4π)

77julia77 [94]3 years ago
4 0

Answer:

r = \sqrt{\frac{A}{4\pi } }

Step-by-step explanation:

Given

A = 4πr² ( isolate r² by dividing both sides by 4π )

r² = \frac{A}{4\pi }

Take the square root of both sides

r = \sqrt{\frac{A}{4\pi } }

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