Students will engage in various investigations relating to triangles, such as:
- Patterns leading to the relationship of the sides and angle measurements (p.33 Addm - geo)
- Probability activity related to making triangles out of straws (exp. probs. p.147)
- Pythagoresan Thm. activities
- Gootman GSP activities
- Joining midpoints of a triangle (open ended app. p.95)
Given two parallel lines, prove that the sum of the angles in a triangle are equal to 180 degrees.
What relationship arises when different triangles formed between parallel lines share the same base?
Convert a given quadrilateral, pentagon, etc. into a triangle with equivalent area.