SOLUTION: A chord of a circle is 18cm long and subtends an angle of 110° at the centre. Find the radius of the circle.
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Question 1191157
:
A chord of a circle is 18cm long and subtends an angle of 110° at the centre. Find the radius of the circle.
Answer by
Edwin McCravy(20056)
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Split the triangle into two congruent right triangles:
You finish by solving that for r. Edwin
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