Triangles
Class 9 · Mathematics · 5 lessons
Introduction to Congruence of Triangles
Congruence of triangles and criteria for congruence.
Exercise 7.1 — Congruency Problems
Problems based on congruency of triangles.
Exercise 7.2 — Properties of Triangles
Some more properties of triangles.
Exercise 7.3 — More Congruence Criteria
More criteria for congruence of triangles.
Exercise 7.4 — Triangle Inequalities
Inequalities in a triangle.