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Angles in Polygons•
Polygons

Angles in Irregular Polygons WORKSHEET

Suitable for Year groups: Year 8, Year 9
GCSE Tier: Foundation/Higher
Targeting grades: 4-5
Prerequisite knowledge: 2D shapes, Angle rules: on parallel lines in triangles, parallelograms and trapezia, around a point, on a straight line and vertically opposite.
Learning Objective: Understand interior and extrior angles of polygons

Angles in Irregular Polygons WORKSHEET DESCRIPTION

This worksheet focuses on dealing with the sum of the angles in polygons and looks mainly at irregular polygons.

Section A has a table to complete with a diagram of polygons with an increasing number of sides, featuring a missing angle.

Section B asks for a missing angle from some irregular polygons. An extension activity then poses questions about the angles in a diagram featuring a regular octagon.

All worksheets are created by the team of experienced teachers at Cazoom Maths.

Angles in Irregular Polygons Worksheet suitable for students in KS3

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Finding Angles in Regular Polygons

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Tessellating Shapes

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Angles on Parallel Lines (A)

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Angles in Regular Polygons

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Frequently Asked Questions

Students should be comfortable with 2D shapes and have a solid grasp of fundamental angle rules before tackling irregular polygons. They'll need to apply their understanding of angles on parallel lines, in triangles, parallelograms and trapezia, as well as angles around a point, on a straight line, and vertically opposite angles. These prerequisite skills are essential for successfully finding missing angles in the irregular polygons featured throughout the activities.