Geometry Help

Not always. Think of a rectangle. You can have super long sides lengthways and super short side height ways. That would make the diagonal lines have angles on the top and bottom close to 180 degrees and the angles on the left and right closer to 0 degrees the more it expands outward.

(An example video I found that kinda shows it https://www.youtube.com/watch?v=SMqLFms-Fp4)

Thank you so much!!