13s: Know there are 360⁰ in a full turn (180⁰ = half turn; 90⁰ = quarter turn) and recognising types of angle: acute, ob
26s: Use the sum of angles at a point or on a line or vertically opposite to calculate angles
32s: Know and use the sum of angles in a triangle or quadrilateral to work out angles
41s: Calculate angles using angle facts (including isosceles triangles) and provide full geometric arguments
53s: Calculate angles using parallel lines (including reversing bearings) and provide full geometric arguments
61s: Know and use the sum of angles in polygons and find angles in diagrams including regular polygons
70s: Know the proofs of angles sums in triangles or quadrilaterals
74s: Recognising congruent triangles using SSS, SAS, ASA or RHS
Higher tier only
75s: Use three circle facts to calculate angles
80s: Calculate angles using five circle theorems and provide full geometric arguments
92s: Provide algebraic proof of the circle theorems
95s: Proving congruency or similarity of triangles within more elaborate diagrams (including in circles)
