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ABCD is a cyclic quadrilateral whose dia...

ABCD is a cyclic quadrilateral whose diagonals intersect at P. If AB=BC, `angle DBC =70^@` and `angle BAC=30^@`, then the measure of `angle PCD` is :
ABCD एक चक्रीय चतुर्भुज है जिसके विकर्ण एक-दूसरे को P पर काटते हैं | यदि AB=BC, `angle DBC =70^@` तथा `angle BAC=30^@` है, तो कोण PCD का माप क्या है ?

A

`35^@`

B

`50^@`

C

`55^@`

D

`30^@`

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