By the end of this unit, students will:
- recap angle facts studied in previous years;
- review different types of polygons with reference to shapes, names and side lengths;
- calculate the interior and exterior angles of a polygon;
- determine the sum of interior angles of a polygon;
- and find the connection between the number of sides and the number of triangles in a polygon.
Curriculum Alignment: Key Stage 3: Geometry and Measures
- derive and use the sum of angles in a triangle and use it to deduce the angle sum in any polygon, and to derive properties of regular polygons
