Question

if the surface area of a sphere is 616 CM square then find its radius

Answer 1

Hey friend here is your answer

Surface area of sphere =
$4\pi \times r {}^{2}$
Therefore 4 × 22/7 × r ^2 = 616

4 × 22 × r^2 = 616 × 7

88 × r^2 = 4312

r^ 2 = 4312 ÷ 88

r ^2 = 49

r = 7

Therefore radius of sphere is 7cm

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Answer 2

Answer:

→ Radius = 7 cm

Step-by-step explanation:

→ Surface area = 4πr²

616 = 4πr²

4πr² = 616

2×2× 3.14 × r² = 616

${r}^{2} = \frac{616}{4 \times 3.14} \\ \\ {r}^{2} = 49 cm$

r = 7 cm