Calculate unknown angles using the property of an angle between tangent and radius of a circle.
0580E4.6
Recognise rotational and line symmetry (including order of rotational symmetry) in two dimensions.
Recognise symmetry properties of the prism (including cylinder) and the pyramid (including cone).
Use the following symmetry properties of circles:
• equal chords are equidistant from the centre
• the perpendicular bisector of a chord passes through the centre
• tangents from an external point are equal in length.
0580E4.7F
Calculate unknown angles using the property of an angle between tangent and radius of a circle.
