Question

A chocolate is made in the shape of a sphere of diameter `4cm`, which has hollow inside of diameter `3.7cm`. What is the volume of the chocolate?

Answer 1

12.23 cu cm

Explanation:

Outside diameter (`2R`) = `4` cm. So, Radius (R) = `2` cm
Inside diameter (`2r`) = `3.7` cm. So, Radius (r) = `3.7/2` cm.
Now, the volume of the chocolate = `4/3 pi(R^3-r^3)` cu unit.

`rArr 4/3. 22/7. [2^3-(3.7/2)^3]`cu. cm

`rArr 4/3. 22/7. [8-40.653/8]`cu cm

`rArr 4/3. 22/7. 23.347/8 = 12.2276= 12.23 cu cm`