Q3 of 26 Page 183

If the length of diameter of the ball used for playing shotput in our school is 7 cm. let us write by calculating how many cubic cm of iron is there in the ball.

Given:


Diameter of sphere = 7cm


Formula used:


1. Diameter of sphere = 2×Radius


Radius = 7/2 = 3.5cm


2. Volume of sphere = (4/3)×π×r3



⇒ Volume of sphere = (4/3)×π×(3.5)3 = 179.67 cm3


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