If the total surface area of a solid hemisphere is equal ...
If the total surface area of a solid hemisphere is equal to its volume, find the radius
3.0cm
4.5cm
5.0cm
9.0cm
Correct answer is B
T.S.A of hemisphere = 3πr2
vol of hemisphere = 23πr3
3πr2 = 23πr3
3 = 23r
9 = 2r
r = 92
r = 4.5cm
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