Sec 3/4 E Math Mock 1-Q15 - Mock Paper 1: Angle at the centre of a circle

Sec 3/4 E Math Mock 1-Q15 - Mock Paper 1: Angle at the centre of a circle

Secondary 3
3 marks
Original parallel to Sec3&4 E Math FA

Points \(A\), \(B\) and \(C\) lie on a circle with centre \(O\). \(\angle ACB=40^\circ\). Calculate \(\angle AOB\).[3]

Solution:

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Answer:\(80^\circ\).

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