Table of Contents
- Sum of Angles of a Triangle
- What’s Next?
In the previous segment, we learnt about Perpendicular transversals. In this segment, we will learn a bit more about the angles within a triangle.
How is the sum of angles of a triangle always 180°?
The sum of the angles of a triangle always equals 180°.
Let us understand the logic behind this with the help of the following example:
Consider triangle ABC.
Cut the triangle into 3 parts as shown below:
Now, there are three parts: AEDF, EBD, and FCD.
Rotate each of these parts in such a way that A, B, and C meet at a single point. The resultant figure will look like this:
