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Triangle Proportionality Theorem

Author:Jessica Reznicek, Melzoo
Move any blue point to observe the proportional segments formed by a parallel side within a triangle.
Jerel L. Welker and Matt James Lincoln Southwest High School Lincoln, NE jwelker@lps.org and mjames2@lps.org

Click the first box. What do you notice about the scale factors? Part to Part.

Select all that apply
  • A
  • B
Check my answer (3)

Click the first box. What do you notice about the scale factors? Part to entire side length.

Select all that apply
  • A
  • B
Check my answer (3)

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