Circle Theorems: Angle at the centre and angle at the circumference
Circle Theorems: Angle at the centre and angle at the circumference
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Lesson details
Key learning points
- In this lesson, we will learn that the angle at the centre of a circle is twice the angle at the circumference when subtended from the same arc. We will prove this result with a general case.
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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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3 Questions
Q1.
Work out the size of angle x.
225º
300º
90º
Q2.
Work out the size of angle x.
144º
18º
324º
Q3.
Work out the size of angle x.
112º
124º
56º