Deepen understanding of how to calculate angles in polygons by using this resource.

This Year 6 Calculate Angles in Polygons Reasoning and Problem Solving worksheet helps children understand that different polygons have a different total of interior angles depending on the number of sides, linked to how many triangles the polygon can be split into. They will reason whether a child has split a polygon into triangles correctly, explain a mistake in how a polygon has been split into triangles and identify polygons that achieve given criteria linked to angles. All answers are also included so that marking is as easy as possible!

A varied fluency worksheet and fluency matrix are also available for this small step.