Question

find the radius of sphere whose surface area is 36 cm​

Answer 1

QuestioN :-

find the radius of sphere whose surface area is 36 cm.

ANsWeR :-

Surface area of Sphere = 4πr²

=> 36 = 4 × 3.14 × r²

=> 36/4 = 3.14 × r²

=> 9 = 3.14 × r²

=> 9/3.14 = r²

=> 2.86 = r²

=> √2.86 = r

=> 1.43 = r

Hence , Radius is 1 43 cm

Answer 2

given-surface area=36cm

to find- radius

solution

Surface area of Sphere = 4πr²

=> 36 = 4 × 3.14 × r²

=> 36/4 = 3.14 × r²

=> 9 = 3.14 × r²

=> 9/3.14 = r²

=> 2.86 = r²

=> √2.86 = r

=> 1.43 = r

radius=1.43

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