Circle geometry

This lesson comprises four (4) master classes focusing on:

• Angles in circles
• Chords
• Tangents
• Secants

Content:

MA5-CIR-P-01

Prove and apply angle and chord properties of circles

• Apply terminology associated with angles in circles
• Identify the arc on which an angle at the centre or circumference stands
• Demonstrate that at any point on a circle there is a unique tangent to the circle, and that this tangent is perpendicular to the radius at the point of contact
• Prove chord properties of circles
• Prove angle properties of circles
• Apply chord and angle properties of circles to find unknown angles and lengths in diagrams

Prove and apply tangent and secant properties of circles

• Prove tangent and secant properties of circles
• Apply tangent and secant properties of circles to find unknown angles and lengths in diagrams