Edexcel Gcse Mathematics (Linear) - Circle Theorems Page 7
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1
2
3
4
5
6
7
8
9
10
11
129.
D
A
70°
O
x°
y°
C
B
Diagram NOT accurately drawn
In the diagram, A, B, C and D are points on the circumference of a circle, centre O.
Angle BAD = 70°.
Angle BOD = x°.
Angle BCD = y°.
(a)
(i)
Work out the value of x.
x = ....................................
(ii)
Give a reason for your answer.
...............................................................................................................................
...............................................................................................................................
(2)
(b) (i)
Work out the value of y.
y = ....................................
(ii)
Give a reason for your answer.
...............................................................................................................................
...............................................................................................................................
(2)
(4 marks)
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