A piece of wire `20` `cm` long is bent into the form of an arc of a circle, subtending an angle of `60^(@)` at its centre. Find the radius of the circle.

Explanation

To find the radius of the circle formed by bending a wire of length 20 cm into an arc that subtends an angle of 60 degrees at the center, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Length of the arc (L) = 20 cm
- Angle subtended at the center (θ) = 60 degrees

...