X=45
We already know that one angles is 90 degrees and that the full degrees inside a triangle is 180
So minus 90 from 180 and you get 90.
Since the other two angles are congruent that means they have the same measure so divide 90 by 2 to get the measure of both angles which is your answer
You can take out 8 so it would be
1
----
18
Answer:
airplane A
Step-by-step explanation:
