A chord of a circle is equal to the radius of the circle find the angle subtended by the chord at a point on the minor arc and also at a point on the major arc.

Explanation

To solve the problem, we need to find the angles subtended by a chord of a circle at points on the minor and major arcs when the chord is equal to the radius of the circle.

### Step-by-Step Solution:

1. **Understanding the Circle and Chord**:
- Let the center of the circle be \( O \).
- Let \( BC \) be the chord of the circle, and we are given that \( BC = r \) (the radius of the circle).

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