Which relationship is always correct for the angles m, n, and p of triangle ABC? A triangle ABC has angle ABC labeled as n, angle BCA labeled as p, and the exterior angle at A labeled as m. n + p = m m + p = n m + p + n = 180 degrees m + p + n = 90 degrees
The answer is that m + p + n = 180 degrees because all angles in a triangle add up to 180. I hope this helps!