Find the diameter of a sphere whose surface area is 154 cm².

Question

KnowledgeBoat · Accepted Answer

Surface area of sphere = 4πr². Given, surface area = 154 cm². ∴ 4πr² = 154 Diameter = 2 × radius = 2 × 3.5 = 7 cm. Hence, the diameter of sphere = 7 cm.

Mathematics

Find the diameter of a sphere whose surface area is 154 cm².

Mensuration

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Mathematics

Find the diameter of a sphere whose surface area is 154 cm2.

Mensuration

Related Questions

Find the surface area and volume of a sphere of diameter 21 cm.

A shot-put is a metallic sphere of radius 4.9 cm. If the density of the metal is 7.8 g per cm3, find the mass of the shot-put.

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A hemispherical brass bowl has inner-diameter 10.5 cm. Find the cost of tin-plating it on the inside at the rate of ₹ 16 per 100 cm2.

Find the diameter of a sphere whose surface area is 154 cm².

A shot-put is a metallic sphere of radius 4.9 cm. If the density of the metal is 7.8 g per cm³, find the mass of the shot-put.

Find
(i) the curved surface area.
(ii) the total surface area of a hemisphere of radius 21 cm.

A hemispherical brass bowl has inner-diameter 10.5 cm. Find the cost of tin-plating it on the inside at the rate of ₹ 16 per 100 cm².