Step-by-step explanation:
In the picture above.
Number 2 I suppose that as a straight line
so , it becomes easy to solve for y angle.
I hope that it's a clear solution.
A) 8/40 = 1/5
b) 12/40 or 6/20
c) 26/40 or 13/20
Answer:
B
Step-by-step explanation:
B and E :)