# Understanding Congruent Triangles and the Angles of Triangles

This article will explore the concept of congruent triangles and how they are formed. It will also discuss the angles of triangles and how they can be used to determine if two triangles are congruent. Understanding these concepts is essential to passing Unit 4 Congruent Triangles Homework 2.

## What is Congruent Triangles?

Congruent triangles are two triangles that have the same size and shape. This means that all sides and angles of the two triangles must be equal in order for them to be congruent. In other words, the two triangles are identical in all aspects. For example, if one triangle has sides of length a, b, and c and angles A, B, and C, then the other triangle must also have sides of length a, b, and c and angles A, B, and C.

## How to Determine Congruenc

There are a few ways to determine if two triangles are congruent. The first way is to use the side-side-side (SSS) theorem, which states that two triangles are congruent if they have three sides of equal length. The second way is to use the angle-side-angle (ASA) theorem, which states that two triangles are congruent if two angles and a side of one triangle are equal to two angles and a side of another triangle. The third way is to use the side-angle-side (SAS) theorem, which states that two triangles are congruent if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle.

## Angles of Triangles

The angles of a triangle are the interior angles formed by the three sides. The sum of the three angles is always 180°. Each angle is also related to the lengths of the sides. For example, in a right triangle, the longest side is opposite the right angle, and the other two sides are the legs of the right triangle. The right angle will measure 90°, and the two other angles will measure 45° each. Knowing the angles of a triangle can help determine if two triangles are congruent.

## Conclusion

In conclusion, congruent triangles are two triangles that have the same size and shape. The angles of a triangle are the interior angles formed by the three sides, and the sum of the angles is always 180°. Congruent triangles can be determined using the side-side-side (SSS), angle-side-angle (ASA), and side-angle-side (SAS) theorems. Understanding these concepts is essential to passing Unit 4 Congruent Triangles Homework 2.