A circle and a line Animation Play

A point of tangency Whiteboard exercise Play

Central and inscribed angles on the same arc Student activity Play

Circle and line in a coordinate system Simulation Play

Circle and line in a coordinate system Student activity Play

Common tangents Student activity Play

Construction of a perpendicular bisector Animation Play

Construction of a tangent to a circle Animation Play

Construction of an egg Animation Play

Drawing a central angle Simulation Play

Exercises about the equation of the circle with centre at an arbitrary point Student activity Play

Finding points of intersection algebraically Animation Play

Line that is tangent to both circles Animation Play

Mutual position of a circle and a line Student activity Play

Mutual position of a circle and a line Whiteboard exercise Play

Mutual position of a line and a circle Whiteboard presentation Play

Mutual position of a line and a circle Class activity Play

Mutual position of two circles Whiteboard exercise Play

Mutual position of two circles Student activity Play

Points of intersection Student activity Play

Solving problems involving circles Class activity Play

Solving problems involving circles Whiteboard presentation Play

Solving problems using the tangent theorem Student activity Play

Symmetry in a circle Simulation Play

Symmetry in a circle Student activity Play