C.G implies centre of gravity.
What is centre of gravity?
The centre of gravity is a theoretical point in the body where the body’s total weight is concentrated. Knowing the centre of gravity is important because it predicts how a moving body would behave when subjected to gravity, and it can also be used to construct static structures like buildings and bridges.
(1) Scalene triangle – At the point of intersections of medians.
(2) Cylinder – Midpoint of the axis of the cylinder.