It is a way to tell if two angles are congruent. The easiest one of these are when you have a 90 Degree angle in there. Just measure the mirroring side of the triangles that touch.
Measure two of the angles on each triangle and if everything from both sides are coming out with the same answers then the answer is yes it is congruent.
Assumptions about the angles in the pattern at all. Between the two points you and v in the upper row has to be a whole number, but it need not be 1. Symmetry), it could be zero.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.