The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two oppositeremote interior angles of the.... The exterior angle theorem is Proposition . in Euclids Elements, which states that the measure of an exterior angle of a triangle is greater than either.... . . ... This geometry video tutorial provides a basic introduction into the exterior angle theorem for triangles. It explains how to use it solve.... Exterior Angle Theorem equals the angles a plus b is greater than angle a, and is greater than angle b.... . . ... The exterior angle theorem tells us that any exterior angle of a triangle equals the sum of the opposite two interior angles and that the.... Or you could just say, look, if I have the exterior angles right over here, its equal to the sum of the remote interior angles. Thats just a little.... Exterior Angle Theorem. The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior a
