Question

bac =? what is the measure of angle ABC

Answer 1

Answer:

angle bac is 90 degree angle abc is 90 degree

Step-by-step explanation:

sum of three angles =180 degree

angle bac+ angle abc =180 degree

90 degree +angle abc =180 degree

angle abc =180-90 degree

angle abc =90 degree.hence the proof please mark me as brain list