Answer:
Step-by-step explanation:
The answer is every long.
as the figure shows
this angle's sum is 90°
(3x+40)°+(4x-6)=90°
7x+34=90°
7x=90-34
7x=56
x=56/7
x=8
3x+40 = 3×8+40 = 64°
4x-6 = 4×8-6 = 26°
Answer: (B) m∠XZY = 1/2(a - b)
Hope that helps you
