Question
A cone has a height of 28 cm. A sphere is melted to form
this cone. If the radius of the sphere is 7 cm, find the radius of the base of the cone.Solution
Volume of sphere = Volume of cone (4/3)ΟrΒ³ = (1/3)ΟRΒ²H (4/3) Γ Ο Γ 7Β³ = (1/3) Γ Ο Γ RΒ² Γ 28 4 Γ 343 = 28RΒ² RΒ² = 49 R = 7 cm Correct option: a
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Β
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Β
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Three of the following four words are alike in a certain way and one is different. Pick the odd one out.
