Question

Please explain this to me

Answer 1

<A=<BCP+<PCD ( OPPOSITE ANGLES ARE EQUAL IN PARALLEIOGRAM)

60=2<PCB

<PCB=30 °

SIMILARLY

<PDC=55°

NOW IN TRIANGLE PCD

<P+<C+<D=180°

<P+55+30=180

<p=180-85=95°