It may be useful to refer to M1 properties of angles; M1 properties of 2D shapes and M5 Polygons if necessary. The sum of the angles inside any polygon can be found by spitting the polygon into ...

The number of triangles that a polygon can be divided into is always two less than its number of sides. Consider any triangle. The sum of the angles is known to be 180º. A quadrilateral can be ...

Polygons are 2D shapes that have straight sides. Regular polygons have sides and angles that are all the same size. Let's recap what a polygon is with this quick video. How would you work out the ...

Polygons can be regular or irregular. If the angles are all equal and all the sides are equal length it is a regular polygon. To find the sum of interior angles in a polygon divide the polygon ...

A regular polygon is a polygon with all equal sides and angles. An irregular polygon is a polygon where this is not the case. Knowing the difference between regular and irregular polygons can help ...

Interior angles in a triangle add up to 180˚. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to ...

A polygon is simply a shape with three or more sides and angles. Quadrilaterals are 2D shapes with four sides and angles. There are six special quadrilaterals with different properties.

Measurement and Geometry. You may wish to recap previous learning on the names of shapes and their properties, such as number of sides and angles. You could check pupils' understanding of the ...

Polygons are 2D shapes that have straight sides. Regular polygons have sides and angles that are all the same size. Let's recap what a polygon is with this quick video. How would you work out the ...