# Triangles

A triangle is a polygon with three edges and three vertices. In Euclidean geometry any three points, when non-collinear, determine a unique triangle. Two triangles will be said congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

# Audience

These video lectures have been prepared exclusively for all English medium state board and central board class 9th students to have the understanding on triangles.

# Instructor

Megha holds a B.Tech in Electronics and Communication Engineering from NIT, Kurukshetra. Currently associated with Tutorials Point as a Mathematics Trainer, she delivers lectures for classes 11,12, and IIT JEE students. Apart from Mathematics, she has good experience in designing of Railway's network. In addition, she has worked on various protocols such as Bluetooth 4.1, 6LoWPAN, DASH7, and ZigBee.