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Find the volume and surface area of a sphere whose radius is 4.2 cm. |
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Answer» It is given that Radius of the sphere = 4.2cm We know that Volume of the sphere = 4/3 πr3 By substituting the values Volume of the sphere = 4/3 × (22/7) × 4.23 So we get Volume of the sphere = 310.464 cm3 We know that Surface area of the sphere = 4 πr2 By substituting the values Surface area of the sphere = 4 × (22/7) × 4.22 So we get Surface area of the sphere = 221.76 cm2 |
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