Prove two triangles are congruent by showing they satisfy one of four criteria. Find missing lengths by using the scale factor. The relationship between similar shapes may be expressed as a ratio.

vi) (Motivate) If a side of a triangle is produced, the exterior angle so formed is equal to the sum of the two remote interior angles. 2. Triangles i) (Motivate) Two triangles are congruent if any ...

CBSE Class 10 Triangles Notes: Class 10 Chapter 6 Triangles revision notes have been provided to you in this article. These short notes on quadratic equations will further add to your knowledge ...