The tangent and coordinates of the points Animation Play

The tangent of an arbitrary angle Student activity Play

The tangent theorem – solving problems Whiteboard exercise Play

The triangle Student activity Play

The triangle Whiteboard exercise Play

The triangle inscribed in a circle Whiteboard exercise Play

The triangle under enlargement Animation Play

The triangles under enlargement Whiteboard exercise Play

Theorem – assumptions and claim Student activity Play

Theorem – assumptions and claim Whiteboard exercise Play

Theorems and their assumptions in geometry Student activity Play

Transform a triangle into a rectangle Student activity Play

Transform a triangle into a rectangle Simulation Play

Transformation of a triangle Animation Play

Transformations Student activity Play

Translation, rotation, reflection and symmetry Animation Play

Trapezium Student activity Play

Trapezium Whiteboard exercise Play

Triangle Whiteboard exercise Play

Triangle Animation Play

Triangle Whiteboard exercise Play

Triangle Student activity Play

Triangle Student activity Play

Triangle and circle Animation Play

Triangle and its area Simulation Play