The sum of the exterior angles of a pendecagon Whiteboard exercise Play

The sum of the interior angles in the polygons Whiteboard exercise Play

The sum of the interior angles of a quadrilateral – proof Animation Play

The tangent – reducing angles Student activity Play

The tangent – reducing angles Whiteboard exercise Play

The transversal and angles Student activity Play

The transversal and angles Whiteboard exercise Play

Triangles in LOGO Student activity Play

Trigonometric functions of quadrantal angles Whiteboard exercise Play

Trigonometric functions of quadrantal angles Student activity Play

Trigonometric functions of the sum and difference of angles (1) Class activity Play

Trigonometric functions of the sum and difference of angles (1) Whiteboard presentation Play

Trigonometric functions of the sum and difference of angles (2) Class activity Play

Trigonometric functions of the sum and difference of angles (2) Whiteboard presentation Play

Trigonometric ratios – the angles of the triangle Whiteboard exercise Play

Two isosceles triangles Whiteboard exercise Play

Two right-angled triangles Whiteboard exercise Play

Types of angles Animation Play

Various angles Whiteboard exercise Play

Vertical and supplementary angles Animation Play

Vertical and supplementary angles in a triangle Simulation Play

Vertical angles Whiteboard exercise Play

Vertical angles – revision Student activity Play