Are the exterior angles formed at each vertex of a triangle equal? What can you say about the sum of an exterior angle of a triangle and its adjacent interior angle? Share with your friends Share 4 Rishabh Mittal answered this Dear Student, Exteriors angle formed at each vertex of a triangle are not equal .Exteriors angle are equal to the sum of opposite interior angles.An exterior angle and its adjacent interior angle form a linear pair.So, Sum of an exterior angle of a triangle and its adjacent interior angle is 180°. -3 View Full Answer Ayush Tanwar answered this what -1
