- Activity 4.5.1 Right Triangles
- Activity 4.5.2a The Right Triangle Similarity Theorem (open ended)
- Activity 4.5.2b The Right Triangle Similarity Theorem
- Activity 4.5.3 Geometric Means (may be skipped)
- Activity 4.5.4a Similar Triangles and the Pythagorean Theorem (open ended)
- Activity 4.5.4b Similar Triangles and the Pythagorean Theorem
- Activity 4.5.5 Right, Acute, Obtuse?
- Activity 4.5.6 The Converse of the Pythagorean Theorem