The area of a regular hexagon Whiteboard exercise Play

The area of an equilateral triangle Student activity Play

The area of an equilateral triangle Whiteboard exercise Play

The circle and the equilateral triangle Whiteboard exercise Play

The circle and the equilateral triangle Student activity Play

The distance formula – applications Student activity Play

The equilateral triangle Student activity Play

The equilateral triangle and the square Whiteboard exercise Play

The height of the equilateral triangle Whiteboard exercise Play

The hidden patterns Animation Play

The missing angles in special triangles Whiteboard exercise Play

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

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

The polygon made of two triangles Whiteboard exercise Play

The ratio of squares to triangles Whiteboard exercise Play

The sides of isosceles triangles Student activity Play

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

The sum of a convergent geometric series – triangles Whiteboard exercise Play

The symmetry of isosceles triangles Animation Play

The symmetry of triangles Whiteboard exercise Play

The triangles under enlargement Whiteboard exercise Play

Triangles Whiteboard exercise Play

Triangles Whiteboard exercise Play

Triangles Class activity Play

Triangles Student activity Play