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A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. The length of the side AB is 24 units.

What is a line?

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. A line segment is also a line but a line with finite length and fixed endpoints.

Given that BD is congruent to BC, therefore, we can write,

BD = BC

5x - 26 = 2x + 1

5x - 2x = 1 + 26

3x = 27

x = 27/3

x = 9

The length of the BC will be,

BC = 2x + 1

     = 2(9) + 1

     = 18 + 1

     = 19

Further, the length of AB can be written as,

AB = AC - BC

     = 43 - 19

     = 24

Hence, the length of the side AB is 24 units.

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