Step-by-step explanation:
Angle 128 ° + Angle Y = 180 °
Y = 180 - 128
= 52 °
5x + 3 + Y = 180
5x + 3 + 52 = 180
5x + 55 = 180
5x = 180 - 55
5x = 125 °
x = 125 ÷ 5
x = 25
Answer:
n<8
Step-by-step explanation:
Answer:
chapter 3,9,10 are quite hard for me
Step-by-step explanation:
Answer: A. Vertical angles
Step-by-step explanation:
They are vertically opposite angles.
Correct me if I am incorrect.