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GrogVix [38]
3 years ago
7

HELP ASAP!! Sorry if it’s hard to see. The second answer options are, 4.15, 2.33, 17.2

Mathematics
1 answer:
nirvana33 [79]3 years ago
3 0

Answer:

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

r = 17.2 cm

Step-by-step explanation:

∵ The area of the circle A = πr²

∴ r² = A/π

∴ r = √(A/π)

∵ A = 54 cm²

∵ π = 22/7

∴ r = √(54/(22/7)) = √(54×7/22) = 17.2 cm

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