Question

why triangle always have 180 degree ?​

Answer 1

As we know, if we add up the interior and exterior angles of one corner of a triangle, we always get 1800. ... In other words, the other two angles in the triangle (the ones that add up to form the exterior angle) must combine with the angle in the bottom right corner to make a 1800 angle.

Answer 2

Answer:

As we know, if we add up the interior and exterior angles of one corner of a triangle, we always get 1800. ... In other words, the other two angles in the triangle (the ones that add up to form the exterior angle) must combine with the angle in the bottom right corner to make a 1800 angle.

hope this will help you