Respuesta :

Answer:

D is the correct one

Step-by-step explanation:

The whole angle equals 72 and the partial angle equals 45

You put

72-45= 27

So 3x=27

Then you solve this equation

3x = 27

x = 27/3

x = 9

The measure of x= 9 with angle 45

What are vertically angles?

Vertical angles are angles opposite each other where two lines cross.

given:

3x = 45  (vertically opposite angle)

x=9

Learn more about this concept here:

rainly.com/question/15458306

#SPJ2