State whether true or false: The sides of an object and its image formed by a concave mirror are always interchanged.

Explanation

To determine whether the statement "The sides of an object and its image formed by a concave mirror are always interchanged" is true or false, we can analyze the properties of concave mirrors.

### Step-by-Step Solution:

1. **Understanding Concave Mirrors**:
- A concave mirror is a mirror that curves inward, resembling a portion of a sphere. It has the ability to converge light rays that are parallel to its principal axis.

2. **Image Formation**:
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