Read the following statement :
''A square is a polygon made up of four line segments, out of which, length of 3 line segments are equal to the length of forth one and all its angles are right angles''. Define the terms used in this definition which you feel necessary. Are there any undefined terms in this ? Can you justify that all the angles and sides of a square are equal?

Explanation

### Step-by-Step Solution

**Step 1: Define the terms used in the statement.**

1. **Polygon**: A polygon is a closed figure made up of three or more line segments. For example, a triangle is a polygon with three sides, while a square is a polygon with four sides.

2. **Line Segment**: A line segment is a part of a line that has two endpoints. For instance, if we have points A and B, the line segment AB consists of all the points between A and B, including A and B themselves.

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