Which of the following statements must be true about this diagram? Check all that apply.

Answer:
b,c,f
Step-by-step explanation:
in a triangle, the sum of all angles is 180°
on a straight line, the sum of all angles is also 180°
so we get:
[tex]x + y + z = 180 \\ w + z = 180[/tex]
and then this (there is a theorem about this, but the proof is simple enough):
[tex]w = x + y[/tex]
since x, y, w are positive values:
[tex]w > y \\ w > x[/tex]