Common tangents Student activity Play

Completing the proportion Whiteboard exercise Play

Completing the proportion Student activity Play

Congruency of triangles Whiteboard exercise Play

Congruency of triangles and other figures Student activity Play

Congruent triangles Animation Play

Constructing a line parallel to a given line Simulation Play

Constructing a perpendicular bisector Simulation Play

Constructing a perpendicular to a given line Simulation Play

Constructing a perpendicular to line at a point off the line Simulation Play

Constructing the image of a triangle in a line Animation Play

Construction of a circle inscribed into a triangle Animation Play

Construction of a line bisector Animation Play

Construction of a parallel line Animation Play

Construction of a parallelogram Simulation Play

Construction of a perpendicular bisector Animation Play

Construction of a perpendicular line Simulation Play

Construction of a regular pentagon Animation Play

Construction of a right-angled triangle Simulation Play

Construction of a square Simulation Play

Construction of a tangent to a circle Animation Play

Construction of a tangent to a circle through a point not on the circle Animation Play

Construction of an egg Animation Play

Construction of bisectors Simulation Play

Construction of flat kites Animation Play