Question

Curved surface area of a semispherical bowl is 77 cm. Find its diameter.​

Answer 1

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CSA of hemisphere = 2πr^2 ,

77 = 2×(22/7)×r^2 ,

r^2 = 77×7/44 ,

r^2 = 49/4 ,

r = 7/2 ,

r = 3.5cm.

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