Question

Vertical angles are shown below. Vertical angles are congruent (=)



Find the value of x. (Remember to set up an equation)

Answer 1

Since vertical angles are congruent, we can set up an equation to find the value of x:

40 + 2x = 120

Now we need to solve for x:

2x = 80
x = 40

Therefore, the value of x is 40.