Question

What is the value of x?
a.30
b.45
c.55
d.60

Answer 1

45

Explanation:

We are seen with two lines crossing each other and the angle in which a line has is 180 degrees. Also, the angles labeled 3x and x are supplementary angles, which mean they add up to 180 degrees. Using this information, we can set up an equation.

`x+3x=180`

`4x=180`

`x=45`

Answer 2

b. 45deg

Explanation:

see attached