The radius of the circle inscribed into the right triangle Whiteboard exercise Play

The ratio 1 : 2 Whiteboard exercise Play

The ratio of perimeters Whiteboard exercise Play

The ratio of squares to triangles Whiteboard exercise Play

The ratio of two values Animation Play

The ratio of two values Student activity Play

The ratios of more than two quantities Student activity Play

The rectangle Student activity Play

The rectangle Whiteboard exercise Play

The right prism based on a right-angled triangle Whiteboard exercise Play

The right triangle Animation Play

The SAS property Animation Play

The set of commands Whiteboard exercise Play

The shaded triangle Whiteboard exercise Play

The shapes Animation Play

The Side-Angle-Side (SAS) property Whiteboard exercise Play

The Side-Side-Side (SSS) property Whiteboard exercise Play

The side-splitting theorem Animation Play

The sides of isosceles triangles Student activity Play

The sides of the triangles – trigonometric ratios for selected angles Whiteboard exercise Play

The Side–Angle–Side (SAS) property – observations and generalisation Student activity Play

The Side–Side–Side (SSS) property Student activity Play

The Sierpinski Gasket Simulation Play

The sine formula for the area of a triangle Whiteboard presentation Play

The sine formula for the area of a triangle Class activity Play