CPM Student GuidebookCC Geometry eTools Chapter 2CCG 2.1.4: Triangle Sum Theorem (Desmos)

CCG 2.1.4: Triangle Sum Theorem (Desmos)

Click on the link below for the “Angles in a Triangle."

1. Triangle Sum Theorem:

Triangle Sum Theorem:

2. How does "Show Parallel Lines" help when determining the sum of the interior angles of a triangle?

How does "Show Parallel Lines" help when determining the sum of the interior angles of a triangle?