Answer:
x = 2
Step-by-step explanation:
These are known as alternate exterior angles. These types of angles are equal to each other.

9514 1404 393
Answer:
6.64
Step-by-step explanation:
Perhaps you have ...

_____
Here, it is convenient to factor out 10^-19. If you like, a calculator or spreadsheet can figure this for you.
180
180- 40=140
140 / 2= 70