TLM for external angle theoram

A simple and attractive teaching aid to demonstrate properties of triangles and the external angle theorem. Made using sunboard and precisely cut acrylic angular pieces. This teaching/ learning aid will help students visualize and understand external and corresponding internal angles in different cases in different types of triangles.

Consists of a board with different triangles drawn on it. Use this to identify and measure different external angles and verify that it is equal to remote interior angles.

Contents

• Made of board and precision cut acrylic angles