Two concentric circles are of radii 5 cm and 3 cm. Find the length of the chord of the larger circle which touches the smaller circle.

Explanation

To solve the problem of finding the length of the chord of the larger circle that touches the smaller circle, we can follow these steps:

### Step 1: Understand the Configuration
We have two concentric circles, meaning they share the same center. The radius of the larger circle (R) is 5 cm, and the radius of the smaller circle (r) is 3 cm. We need to find the length of the chord of the larger circle that touches the smaller circle.

### Step 2: Identify the Points
Let’s denote:
- O as the center of both circles.
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