Question

Each vertical face of square based vertical pillar of
height 3 m has 7 equal, semi-cylindrical surfaces in
such a way that its horizontal cross-section is as
shown in the figure.
If the radius of each semi-circle is 10 cm, the volume
(in m3) of the pillar so designed
pie as 22/7
is :
(A) 5.88
(C) 6.42
(B) 6.14
(D) 7.2​

Answer 1

Answer - Option D)

use pi 22/7