## Congruent segments Chapter 1 (p. 13)

### Congruent segments are segments that have the same length

Congruent segments are segments that have the same length. In other words, if two line segments have the same length, then they are congruent.

To show that two segments are congruent, we use the symbol ≅, which means “congruent”. For example, if segment AB is congruent to segment CD, we would write it as AB ≅ CD.

There are a few different methods to prove that two segments are congruent. One commonly used method is the ruler postulate or ruler axiom. According to this postulate, we can use a ruler to measure the length of a segment, and if two segments have the same measurement, they are congruent.

Another way to prove congruence is by using the segment addition postulate. This postulate states that if three points A, B, and C are collinear, then the distance between point A and point C is equal to the sum of the distances between point A and point B, and point B and point C. If we can show that the distances are equal, then the segments are congruent.

We can also prove congruence using other theorems in geometry, such as the congruent triangles theorem. If two triangles are congruent, then their corresponding sides (including segments) are congruent as well.

Congruent segments have many applications in geometry and other branches of math. They are important when determining the congruence of shapes and figures, solving geometric problems, and proving geometric theorems.

To summarize, congruent segments are segments that have the same length. We can prove congruence using methods such as the ruler postulate, segment addition postulate, or congruent triangles theorem. Congruent segments play a fundamental role in geometry and have various applications in solving geometric problems and proving theorems.

## More Answers:

Understanding Collinear Points in Mathematics: Methods to Determine Collinearity using Slopes and AreaUnderstanding Complementary Angles: Definition, Examples, and Applications in Geometry and Trigonometry

Understanding Congruent Angles and Their Importance in Geometry