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Question

Find the value of x in the given figure ifAOB=70° and AB = CD.

A
50°
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B
60°
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C
70°
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D
80°
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Solution

The correct option is C 70°
Given that AB = CD.

The angle subtended by chord AB is AOB, and angle subtended by chord CD is COD = x.


We know that equal chords subtend equal angles at the centre.


AOB=COD
Thus, x = 70°.

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