Year 8 · Maths
Apply facts about angles and sides in Year 8 Maths
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Focus on angle facts in triangles and polygons. Open support for “Find Missing Angles in Special Triangles”, then explain the idea in your own words.
Year 8 learners practise angle facts in triangles and polygons.
The activities include Find Missing Angles in Special Triangles, Calculate Angles Around Polygons, Calculate Missing Angles in Triangles and Straight Lines, and related practice. The checked support below includes teaching-practice, teaching, lesson, video. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.
Activities covered
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- Find Missing Angles in Special Triangles — support from Oak National Academy
- Calculate Angles Around Polygons — support from Oak National Academy
- Calculate Missing Angles in Triangles and Straight Lines — support from Oak National Academy
- Calculate Missing Interior Angles of Polygons — support from Oak National Academy
- Identify Similar Shapes and Find Missing Lengths — support from Oak National Academy
- Name the Triangle — support from Oak National Academy
- Solve Geometrical Problems with Angles in Parallel Lines — support from Oak National Academy
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Practise — questions or activities to try
Print — a worksheet you can print
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Watch it explained
watch a video explanation
Oak video: Using The Sum Of The Interior Angles Of A Triangle
Best for: a clear explanation before you practise
Oak video: Interior Angles Of A Polygon
Best for: a clear explanation before you practise
Oak video: Similarity In Shapes
Best for: a clear explanation before you practise
Oak video: Formalising Understanding Of Triangles From Ks2
Best for: a clear explanation before you practise
Oak video: Angles On Parallel Lines Traversed By A Straight Line
Best for: a clear explanation before you practise
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Learn it properly
lessons and teaching pages
Oak lesson slides: Using The Sum Of The Interior Angles Of A Triangle
Best for: worked examples and step-by-step teaching
Angles in Triangles KS3 Walkthrough Worksheet
Best for: worked examples and step-by-step teaching
Geometrical properties: polygons
Best for: worked examples and step-by-step teaching
Oak lesson slides: Interior Angles Of A Polygon
Best for: worked examples and step-by-step teaching
Angles in Polygons KS3 Walkthrough Worksheet
Best for: worked examples and step-by-step teaching
Angle Properties KS3 Walkthrough Worksheet
Best for: worked examples and step-by-step teaching
Angles in Irregular Polygons KS3 Walkthrough Worksheet
Best for: worked examples and step-by-step teaching
Oak lesson slides: Similarity In Shapes
Best for: worked examples and step-by-step teaching
Similar Shapes KS3 Walkthrough Worksheet
Best for: worked examples and step-by-step teaching
Oak lesson slides: Formalising Understanding Of Triangles From Ks2
Best for: worked examples and step-by-step teaching
Oak lesson slides: Angles On Parallel Lines Traversed By A Straight Line
Best for: worked examples and step-by-step teaching
Angles in Parallel Lines KS3 Resource Pack
Best for: worked examples and step-by-step teaching
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Practise it
questions and activities to try
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Print and finish
worksheets away from the screen
Oak worksheet: Using The Sum Of The Interior Angles Of A Triangle
Best for: pencil-and-paper practice away from the screen
Oak worksheet: Interior Angles Of A Polygon
Best for: pencil-and-paper practice away from the screen
Oak worksheet: Similarity In Shapes
Best for: pencil-and-paper practice away from the screen
Oak worksheet: Formalising Understanding Of Triangles From Ks2
Best for: pencil-and-paper practice away from the screen
Oak worksheet: Angles On Parallel Lines Traversed By A Straight Line
Best for: pencil-and-paper practice away from the screen
Nothing in this step matches your filters.