## KS3 Maths Angles in a triangle animation

Powerpoint suitable for KS2 and KS3 Maths: Shape, space and Measure / Geometry - Triangle properties. This animation shows how angles in a triangle lie and a straight line and therefore add up to 180. I usually get students to test this out with their own card triangles and use this animations as a summary.

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### 1 Review

- 4Gareth15124 years agoReport
I like this as it shows clearly how and why the angles in a triangle add up to 180 degrees. You could get the pupils to do this with paper too. Nice to start off a lesson on angles showing this and starting a discussion.

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- Created
- Oct 27, 2011
- Updated
- Jun 4, 2013
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- CC-BY-SA

#### This resource is available to UK teachers.

View US version## Related resources

PowerPoint and worksheet on angles in triangles and properties of triangles

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