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The side BC of a triangle ABC is produce...

The side BC of a triangle ABC is produced to D, bisector of the angle ABC and ACD meet at P. If `angleBPC =x^(@)` and `angleBAC = y^(@)`, then which one of the following is correct ?

A

`x^(@) = y^(@)`

B

`x^(@) + y^(@) = 90^(@)`

C

`x^(@) + y^(@) = 180^(@)`

D

`2x^(@) = y^(@)`

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