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Find the volume of the sphere whose diameter is 30 cm.

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1.41428

c m 3

1414.28

c m 3

141.428

c m 3

14142.8

c m 3

answer is D.

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Detailed Solution

Given that the diameter of a sphere

= 30 cm

.
Then the

radius = \frac{30}{2} = 15 cm

.
The formula for the volume of sphere is given by,
Volume of a sphere

= \frac{4}{3} π r^{3}

, where

r

is the radius.
So, to determine the volume of sphere substitute the values.

⇒ 43 × 227 × 15 × 15 × 15 ⇒ 14142.85 c m 3

Therefore, the volume of sphere is 14142.8

c m 3

.
Hence option (4) is correct.

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