G.SRT.4
Prove theorems about triangles. Theorems include: a line parallel to one side of a triangle divides the other two proportionally, and conversely; the Pythagorean Theorem proved using triangle similarity.
| 1. | Shape Up! 6 - triangle geometry, equilateral and isosceles | |
| 2. | Shape Up! 5 - calculate angle size, angle sum of a triangle | |
| 3. | Shape Up! 2 - deduce type of triangle |