In this video segment, participants describe their strategies for creating triangles that are isosceles but not equilateral. Watch this segment after you have completed Problem C4 and compare your strategy with those of the onscreen participants.
What was Heidi's strategy for creating the triangle? What was Tom's strategy? How did Catalina prove that Tom's triangle was indeed isosceles?
If you are using a VCR, you can find this segment on the session video approximately 16 minutes and 11 seconds after the Annenberg Media logo.