1/2 because it's 2 times smaller
I'm pretty sure it has to have 1 over any number
A straight angle is equal to 180 degrees. 180-80=100. 100-60=40. so y=40. vertical angles are congruent so x=40 degrees.
C.
(I’m pretty sure but if I’m wrong I apologize in advance)
Answer:
1. x = 30
REC = 130
Step-by-step explanation:
2x + 70 = 4x + 10
60 = 2x
x = 30
you try the others
Good luck :D