Question 898341: Given: Ray BX bisects angle ABC, the measure of angle ABX is 45°. Prove: Angle ABC is a right angle. Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website! a right angle is equal to 90 degrees.
since abx bisects abc, then abx must be equal to cbx.
since abs = 45, then cbx must also be equal to 45.
since abc = abx + cbx, then abc is equal to 90 degrees and therefore has to be a right angle by definition.
