Answer: x=40, y=70,
Step-by-step explanation:
To find angle x you first need to find O. You do this by subtract 180-40. Then you would get 140. Take this 140 and subtract it by 180. Your answer for x should be 40.
To find angle y you first need to know that x=40. Taking this you would subtract it by 180. It would leave you with 140. Taking 140 your going to dive it in half to get y. Your answer for y should be 70.
Sorry I'm not sure how to find z.
