Similar Triangles
Class 10 · Mathematics · 5 lessons
This chapter, Similar Triangles, is part of the Class 10 Mathematics syllabus under CBSE, Telangana and Andhra Pradesh boards. It contains 5 lessons — starting with Introduction — Basic Proportionality Theorem, Exercise 8.1 — BPT Problems, Exercise 8.2 — Similarity Criteria, and more — each with free, step-by-step PDF notes you can study directly in the browser or present in class in fullscreen mode. Work through the lessons in order below; later exercises in this chapter generally build on the concepts introduced in the earlier ones.
Introduction — Basic Proportionality Theorem
Basic proportionality theorem and its converse.
Exercise 8.1 — BPT Problems
Problems based on basic proportionality theorem.
Exercise 8.2 — Similarity Criteria
Criteria for similarity of triangles.
Exercise 8.3 — Areas of Similar Triangles
Ratio of areas of similar triangles.
Exercise 8.4 — Pythagoras Theorem
Pythagoras theorem and its converse.