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

Explanation

To find the center of gravity of a solid right circular cone with a height of 40 cm from its top (vertex), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Geometry of the Cone**:
- A solid right circular cone has a vertex at the top, a circular base at the bottom, and a height (h) measured from the vertex to the base.

2. **Identify the Height**:
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