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Published: 25/02/2019
33 pages

Angles in a triangle introduction

This Powerpoint is really good for year 7. It looks at the angles in a triangle, setting out an investigation of what the angles add up to, an animated version of the investigation (removing the corners of a triangle to form a straight line) and then some practice questions to work on as a class and individually.    

See other resources: Geometry and measure | Angles – angles in polygons

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