Calculating the sides of a triangle Animation Play

Checking the triangle in the coordinate system Whiteboard exercise Play

Chord bisector goes through the centre Student activity Play

Circle inscribed into a parallelogram Simulation Play

Circle inscribed into a triangle Student activity Play

Circles and ovals Student activity Play

Circumscribed circles Whiteboard exercise Play

Circumscribed circles, inscribed polygons Student activity Play

Classification of triangles by sides Animation Play

Common polygons Student activity Play

Common polygons – a hexagon Whiteboard exercise Play

Communication in space Student activity Play

Composing and solving linear equations Class activity Play

Composing and solving linear equations Whiteboard presentation Play

Congruence of triangles Whiteboard presentation Play

Congruence of triangles Class activity Play

Congruent figures Student activity Play

Congruent means identical Animation Play

Congruent triangles Student activity Play

Congruent triangles Student activity Play

Congruent triangles Animation Play

Construction of a circle inscribed into a triangle Animation Play

Construction of a hexagon Animation Play

Construction of a parallelogram Simulation Play

Construction of a pentagon Animation Play