Q1 Show that b + d = 150 degrees. [Hint: Q2]
Q2 Show that b + d = c [Hint: Q1]
Q3 Angle PDB is 30 degrees, and DCB is 150 degrees, and DP = PC in a quadrilateral, as shown.
Show that BD is the bisector of angle CBP. [Hint: on next page if required]
If you are stuck on Q3, this diagram might be useful