Edexcel Gcse Mathematics (Linear) - Circle Theorems Page 3
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123.
A, B and D are points on the circumference of a circle, centre O.
BOD is a diameter of the circle.
BC and AC are tangents to the circle.
Angle OCB = 34°.
Work out the size of angle DOA.
.......................................... °
(4 marks)
4.
B
A
O
C
Diagram NOT accurately drawn
B and C are points on a circle, centre O.
AB and AC are tangents to the circle.
Angle BOC = 130°.
Work out the size of angle BAO.
..............................°
(4 marks)
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