In two concentric circles, a chord of length `8cm` of the larger circle touches the smaller circle. If the radius of the larger circle is `5cm` then find the radius of the smaller circle.

Explanation

To solve the problem step by step, we will follow the reasoning laid out in the video transcript.

### Step-by-Step Solution:

1. **Understand the Problem**: We have two concentric circles (circles with a common center). A chord of length 8 cm from the larger circle touches the smaller circle. The radius of the larger circle is given as 5 cm. We need to find the radius of the smaller circle.

2. **Draw the Diagram**:
- Draw two concentric circles with a common center O.
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