Work out the value of angle x.

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

-1/3

Step-by-step explanation:

Use this equation : slope= y2-y1/x2-x1