1.1.10 Manim(A): Triangle 180°

ayla(sharp): (Maybe switch to manim) The rule that gives us the correlation of the triangle angles. It sais that the three angles of any triangle always add up to 180 degree.

so lets draw a trinagle, this rule applies to all triangles, not only rectangular ones, so any triangle, lets call this angle alpha, this beta and this gama, now the rule tells us that alpha + beta + gamma = 180°, this means if we know alpha and beta, we can use this rule to determine gama, without actually measuring gamma, same concept isnt it, given a triangle of which we know two angles we can determine the third one, using the rule, or as rio said it, The third angle isn’t a choice. It’s a consequence of the first two.

visual