I think it's C, I could be wrong though
the angles the top part that has a square is 90⁰ and x and y are equal so we will name them both x and all angles together make 180⁰
I don't know about the sides
Step-by-step explanation:
90+x+x=180
2x=180-90
2x=90
x=90/2
x=45
Answer:
x=15
Step-by-step explanation:
2x=15+x
2x-x=15
x=15