unsolved questions!!!!!!!!!!

Geee kind of stress finding the answer of these....

Here is the question...

(1st picture)

Angle CDE = ECD = 15

ABCD is a square

proof that AEB is a Equilateral triangle.

(2nd picture)

PA, PB and PC are each bisector of angle A, B, C

proof that PD is a bisector of angle D