Question

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1. Find diameter if area is
$616cm {}^{2}$
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Answer 1

Answer

48 cm

Step by step explanation:

Area = 616 cm square

According to Question

$\pi \: {r}^{2} = 616 \\ \frac{22}{7} {r}^{2} = 616 \\ {r}^{2} = \frac{616 \times 7}{22} \\ {r}^{2} = 196 \\ r = \sqrt{196} \\ r = 14$

Diameter = 2×r =14×2 =48 cm

Hope it helps.