Parallel & Triangle: Part 2
Overview
Explore the dynamic construction below.
- Points A, B, and C are the endpoints of a triangle. These endpoints can be moved.
- The line through D and E is parallel to the line BC. Point D can be moved.
Dynamic Construction
Question 4
What proportional relationship is shown? Can you write the proportion in terms of the side length names?
Question 5
What happens when you change the endpoints of the triangle? How does this affect the side lengths and the proportional relationship you found?