1: Right Triangles and the Pythagorean Theorem Last updated Save as PDF Page ID804 Contributed by CK12CK12 1.1: Pythagorean Theorem1.2: Converse of the Pythagorean Theorem1.3: Pythagorean Triples1.4: Applications Using the Pythagorean Theorem1.5: The Pythagorean Theorem for Area and Perimeter1.6: Distance Formula and the Pythagorean Theorem1.7: Pythagorean Theorem to Classify Triangles1.8: Special Right Triangles and Ratios1.10: 30-60-90 Right Triangles1.9: 45-45-90 Right Triangles