Question

the area of a circular swimming pool is 154m2. find radius​

Answer 1

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the area of a circular swimming pool is 154m²

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$area \:of \: circle \: \\ = πr {}^{2} \\a.t.q. \\ 154 = \frac{22}{7} \times {r}^{2} \\ r {}^{2} = \frac{154 \times 7}{22} \\ r {}^{2} = 7 \times 7 \\r {}^{2} = 49 \\ r = \sqrt[]{49} \\ r = 7cm</p><p></p><p>$

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Answer 2

Answer:

r = 7

Step-by-step explanation:

area of circle = π r^(2)

:. 154 = 22/7 × r^(2)

:. r^(2) = 7/22 ×154

:. r^(2) = 7 × 7

:. by taking square root of both sides

r = 7