Quadrilaterals – squares and rectangles Student activity Play

Radius of inscribed and circumscribed circles Animation Play

Rectangles in LOGO Student activity Play

Rhombuses and squares Student activity Play

Shapes in a graphic calculator Simulation Play

Shapes in graphic calculators Student activity Play

Solving problems involving circles Class activity Play

Solving problems involving circles Whiteboard presentation Play

Square circumscribed and inscribed in a circle Student activity Play

Square circumscribed and inscribed in a circle Whiteboard exercise Play

Sum of angles in a quadrilateral Animation Play

Sum of angles in quadrilaterals Student activity Play

Sum of the angles in a cyclic quadrilateral Animation Play

Sum of the angles in a quadrilateral Simulation Play

Sum of the angles in a quadrilateral – proof Animation Play

Symmetry in the coordinate system with respect to the point (0, 0) Whiteboard exercise Play

Symmetry in the coordinate system with respect to the point (0, 0) Student activity Play

Test your knowledge about angles Whiteboard exercise Play

Test your knowledge about angles Student activity Play

The angles of a polygon Whiteboard exercise Play

The angles of a polygon Student activity Play

The angles of a quadrilateral Student activity Play

The angles of a quadrilateral Animation Play

The arc subtending an inscribed angle Simulation Play

The area of a circle Class activity Play