Angles, triangles and polygons
right, acute, obtuse and reflex angles
vertically opposite angles, angles on a straight line and angles at a point
angles formed by two parallel lines and a transversal: corresponding angles, alternate angles, interior angles
properties of triangles, special quadrilaterals and regular polygons (pentagon, hexagon, octagon and decagon), including symmetry properties
classifying special quadrilaterals on the basis of their properties
angle sum of interior and exterior angles of any convex polygon
construction of simple geometrical figures from given data using compasses, ruler, set squares and protractors, where appropriate