Angles in polygons

Last updated: 15/11/2023
Contributor: Teachit Author
Angles in polygons
Main Subject
Key stage
Category
Geometry and measures: 2D shapes
Inside
Includes answers
Resource type
Complete lesson
A KS4 PowerPoint resource that introduces students to the sum of angles in a polygon by splitting the shape into triangles. The first 8 slides are used for students to find the number of triangles in 8 different shapes. They use a table on slide 9 to summarise their results and find the formula. The answers are provided on the final slide. 

All reviews

Have you used this resource?

Nice resource and quite straight forward

Mark Sutcliffe

07/10/2019

5

12/07/2019

5

23/01/2019

Nice resource and quite straight forward

Mark Sutcliffe

07/10/2019

5

12/07/2019

5

23/01/2019