Q3 of 75 Page 225

Find the total surface area of a hemisphere of radius 10 cm. (Use π = 3.14)

Radius (r) of hemisphere = 10 cm

Total surface area of hemisphere = CSA of hemisphere + Area of circular end of hemisphere


= 2πr2 + πr2


= 3πr2


= [3 * 3.14 * 10 * 10]


= 942 cm2


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