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mistakeOne of the answers is wrong in the display below. Can you find it? And can you give the correct answer?
mistake
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Software/Applets used on this page

jsMath
This page uses jsMath
You can get a better display of the maths by downloading special TeX fonts from jsMath. In the meantime, we will do the best we can with the fonts you have, but it may not be pretty and some equations may not be rendered correctly.

Glossary

union

The union of two sets A and B is the set containing all the elements of A and B.

Full Glossary List

This question appears in the following syllabi:

SyllabusModuleSectionTopic
AQA AS Maths 2017Pure MathsStraight Lines and CirclesCircle Theorems
AQA AS/A2 Maths 2017Pure MathsStraight Lines and CirclesCircle Theorems
AQA GCSE (9-1) Higher (UK)G: Properties and ConstructionsG10: Circle TheoremsSpot the Mistake - Circle Theorems
CBSE X (India)GeometryCirclesTangent perpendicular to radius
CIE IGCSE (9-1) Maths (0626 UK)3 GeometryB3.7 Calculating Unknown AnglesSpot the Mistake - Circle Theorems
Edexcel AS Maths 2017Pure MathsCirclesCircle Theorems
Edexcel AS/A2 Maths 2017Pure MathsCirclesCircle Theorems
Edexcel GCSE (9-1) Higher (UK)G: Properties and ConstructionsG10: Circle TheoremsSpot the Mistake - Circle Theorems
GCSE Higher (UK)GeometryCirclesSpot the mistake
OCR AS Maths 2017Pure MathsLines and CirclesCircle Theorems
OCR GCSE (9-1) Higher (UK)8: Basic Geometry8.05: Circle TheoremsSpot the Mistake - Circle Theorems
OCR MEI AS Maths 2017Pure MathsLines and CirclesCircle Theorems
Universal (all site questions)CCirclesSpot the mistake