(a) Understand the definition of different quadrilaterals (kite, trapezium, rhombus, parallelogram). (b) Know properties that quadrilaterals have, i.e. symmetry, diagonals, rotational symmetry, etc. (c) Know that a polygon is regular if its lengths and angles are all equal. (d) Know the angle sum of interior angles given the number of sides, and of exterior angles. (e) Determine each interior/exterior angle of a regular polygon. (f) Determine the number of sides a regular polygon has given each exterior or interior angle.