Question

If a solid sphere of radius 4 cm is cut into 8 equal slices vertically and all the vertical angles are equal, then total surface area of one slice is
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Answer 1

Hi mate here is the answer:-✍️

Volume of sphere=4/3πr^3

⇒ (4/3)π × 103 = 8 × (4/3)π × r3

⇒ r= 10/2 = 5cm

Surface area of a sphere = 4πr2

Thus, the surface area of each sphere

= 4 × π × 52 = 100π

${} \huge \blue{hope \: it \: helps \: you}$

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