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A
0
B
A and B are points on a circle, centre O.
BC is a tangent to the circle.
AOC is a straight line.
Angle ABO = xº.
Find the size of angle ACB, in terms of x.
Give your answer in its simplest form.
Give reasons for each stage of your working.
C

A 0 B A and B are points on a circle centre O BC is a tangent to the circle AOC is a straight line Angle ABO xº Find the size of angle ACB in terms of x Give yo class=


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