Question

Draw a diagram to find the C.G of a triangular lamina.

Answer 1

Centre of gravity (C.G.):

1. The centre of gravity of a body is defined as the point through which the weight of the body acts.
2. The centre of gravity of a body depends on the shape and size of the body.

C.G. of a triangular lamina:

1. The centre of gravity of a triangular lamina is at the point of intersection of its medians, which is called the centroid of the triangular lamina.

Diagram:

1. Consider a triangle ABC, then draw the medians AD, BE and CF.
2. Point of intersection of the three medians gives the centre of gravity (G).
3. C.G. of a triangular lamina is at the centroid of the triangular lamina.