Before reading this guide, it may be helpful to read the guides from Module 1 on the properties of angles and the properties of 2D shapes. The sum of the angles inside any polygon can be found by ...

STEP 1: Use a ruler and pencil to draw an irregular hexagon. A hexagon has six sides so n=6. Use the scissors to cut the shape out. Image caption, STEP 2: Use a pen to draw on and colour in the angles ...