Respuesta :

aliciabrion

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

Step-by-step explanation:

Mangotaku

Answer:

x = 10, 3x = 30

Step-by-step explanation:

3x equals thirty, they are the exact same angles