Angles of quadrilaterals Student activity Play

Angles of quadrilaterals Animation Play

Area of the trapezium Animation Play

Building a quadrilateral Simulation Play

Calculating the area of a polygon Student activity Play

Chord bisector goes through the centre Student activity Play

Circle circumscribed about a quadrilateral Animation Play

Circle circumscribed about a quadrilateral Animation Play

Circle inscribed into a quadrilateral Simulation Play

Circle inscribed into a quadrilateral Student activity Play

Circles inscribed and circumscribed Class activity Play

Circles inscribed and circumscribed Whiteboard presentation Play

Circles inscribed and circumscribed around a trapezium Student activity Play

Circles inscribed into quadrilaterals Student activity Play

Circles inscribed into quadrilaterals Simulation Play

Circumscribed polygons Animation Play

Congruence of triangles Class activity Play

Congruence of triangles Whiteboard presentation Play

Congruency of figures Whiteboard exercise Play

Congruency of triangles and other figures Student activity Play

Congruent = Identical Student activity Play

Congruent = Identical Whiteboard exercise Play

Congruent figures Simulation Play

Congruent figures Student activity Play

Congruent figures – solving problems Student activity Play