Exploration 3: Exterior Angle of a Triangle
Exploration 3
There is a triangle with 3 large white vertices (points) that can be moved around.
- An exterior angle of a triangle is shown.
- The 2 colored angles are referred to as its remote interior angles.
Question 1
What do you notice about the SUM of the measures of the pink angle and green angle (the 2 remote interior angles) of a triangle?
Question 2
How does this relate to the fact we observed in Exploration 1? Make a connection and explain.
Drawing Task
Find the fact that this exploration helps us visualize, and draw a visual on your UNIT 1 Fact Sheet B.