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A sphere has a surface area of 301.84 cm^{2}. Its diameter is
A hemispherical bowl is made of steel, 1 cm thick. The inner radius of the bowl is 6 cm. The outer curved surface area of the bowl is
The total surface area of a hemispherical bowl of radius 77 cm is
If the radius of a sphere is tripled, the ratio of the surface area of original sphere to that of the second is
A hemispherical bowl has total surface area 96 cm^{2}. The lateral surface area of 5 such bowls is
The lateral surface area of a hemisphere whose total surface area is 525 cm^{2} is
The surface area of a sphere of radius 7 cm is
4πr^{2} = 4π(7 x 7)
= 616 cm^{2}
The total surface area of a hemispherical bowl of diameter 28 cm is
The diameter of one sphere is 21 cm, and the diameter of another sphere is 14 cm, the ratios of their curved surface areas is
The curved surface area of a hemisphere of diameter 28 cm is
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