Geometry was not a strong subject for me so I am having a hard time trying to understand why or what two ways you want to describe a triangle. I would think that one class would describe a triangle and then it is how you use that information is what is important.
And when you say: 2 page and 1 corner and 1 page and 2 corner I am not sure what that means or what you want to do with it.
If you have some code started post it so everyone can see what you have done and what might need fixed.
I must write 2 class and use PolarPoint which has been described earlyed by PolarPoint class and another class which described page I have this classes but now I need 2 class they must describe triangle 1) triangle with 2 page and corner and 2) treangle 1 page and 2 corner
Please, consider there could be users of this forum, like me, who are not native English speaker and making an effort to be as much clear as you can could guarantee you a far better help.
However, let me guess:
are you asking some help in writing a class, named PolarPoint, by which describing triangles in polar coordinates?
By 'describing' do you mean something like calculating their area or long side or angles...?
Do you want, e.g., having a triangle of which you know two angles and the side between them, work out the perimeter?
If this is what you are looking for, I'm afraid it's not my cup of tea, since I'm terrible at math.
If I misunderstood, please help me understand.