Building triangles Whiteboard exercise Play

Classification of triangles by angles Animation Play

Classification of triangles by sides Animation Play

Congruence of triangles Class activity Play

Congruence of triangles Whiteboard presentation Play

Congruency of the triangles Whiteboard exercise Play

Congruency of triangles Whiteboard exercise Play

Congruency of triangles and other figures Student activity Play

Congruent triangles Animation Play

Congruent triangles Student activity Play

Congruent triangles Student activity Play

Congruent triangles Whiteboard exercise Play

Congruent triangles Simulation Play

Congruent triangles Animation Play

Congruent triangles Animation Play

Congruent triangles Student activity Play

Congruent triangles – solving problems Student activity Play

Construction of triangles Animation Play

Creating symmetrical triangles Whiteboard exercise Play

Crossing lines cut by two parallel lines Animation Play

Dividing an equilateral triangle into nine congruent triangles Whiteboard exercise Play

Dividing an n-sided polygon into triangles Animation Play

Dividing the polygon into triangles Whiteboard exercise Play

Drawing symmetrical triangles Animation Play

Equilateral triangles Whiteboard exercise Play