Where does the position of centre of gravity lie for
(1) A circular lamina
(2) A triangular lamina

Explanation

To determine the position of the center of gravity for a circular lamina and a triangular lamina, we can follow these steps:

### Step 1: Understand the concept of the center of gravity
The center of gravity (CG) is the point where the entire weight of an object can be considered to act. For symmetrical shapes, the center of gravity lies at their geometric center.

### Step 2: Analyze the circular lamina
1. **Draw a circular lamina**: Visualize or sketch a circle.
2. **Identify the center**: The center of the circle is denoted as point O.
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