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Q.

Find the volume of a sphere whose radius is: 7 cm.


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a

1437.33 cm3

b

1.0478 cm3

c

104.78 cm3

d

143.733 cm3 

answer is A.

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Detailed Solution

Radius of sphere = 7 cm
Volume of sphere = 43πr3
= 43×227×73
= 43×227×7×7×7
= 1437.33 cm3
Thus, the volume of a sphere is 1437.33 cm3.
 
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Find the volume of a sphere whose radius is: 7 cm.