SOLUTION: If ABC is any triangle, and TAC is one of its exterior angles, then what can be said about the size of angle TAC, in relation to the other angles of the figure? thanks !!!!!

Algebra ->  Triangles -> SOLUTION: If ABC is any triangle, and TAC is one of its exterior angles, then what can be said about the size of angle TAC, in relation to the other angles of the figure? thanks !!!!!      Log On


   

Question 147274: If ABC is any triangle, and TAC is one of its exterior angles, then what can be said about the size of angle TAC, in relation to the other angles of the figure?
thanks !!!!!
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of the interior angles of a triangle is 180 degrees.
TAC + CAB = 180 a well since those angles are supplementary (the form a straight angle).
Thus TAC = the sum of the other two angles in ABC
TAC = ABC + BCA