Edexcel Gcse Mathematics (Linear) - Circle Theorems Page 8
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1210.
The diagram shows a circle centre O.
A, B and C are points on the circumference.
DCO is a straight line.
DA is a tangent to the circle.
Angle ADO = 36°
(a) Work out the size of angle AOD.
..................................°
(2)
(b) (i) Work out the size of angle ABC.
..................................°
(ii) Give a reason for your answer.
............................................................................................................................................
............................................................................................................................................
............................................................................................................................................
(3)
(4 marks)
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