- Thread starter Mohssine
- Start date

- Joined
- Jun 18, 2007

- Messages
- 23,779

Please show us what you have tried andABCD is a convex quadrilateral which AD=AB+CD, P is the intersection of the two bisector or the two angles BAD and ADC, proof that PA=PC

Please follow the rules of posting in this forum, as enunciated at:

Please share your work/thoughts about this problem.

- Joined
- Nov 12, 2017

- Messages
- 10,590

PC=PB i meantIf this is what you mean, then the claim is false:

View attachment 25250

Please correct the problem.

- Joined
- Nov 12, 2017

- Messages
- 10,590