Find the centre of gravity of a solid right circular cone of height 40 cm from its top (vertex).

Explanation

The centre of gravity of a solid right circular cone of height .h. lies on its axis at a distance `h//4` from its base.

The C.G (G) is at a distance `3//4` h from the vertex.
From figure, `x = 3//4h`
`x = 3//4 xx 40` = 30 cm.