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Question -

In a cyclic quadrilateral ABCD, if m ∠A = 3 (m ∠C). Find m ∠A.



Answer -

It is given that
ABCD is cyclic quadrilateral and  
 
We have to find  
Since ABCD is cyclic quadrilateral and sum of opposite pair of cyclic quadrilateral is 180°.
So  
And
Therefore
 
Hence  

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