Respuesta :

C is the correct answer

Because DC||AB then 3x+6+42=180
3x=132
X=44
choixongdong

Answer:

C. 44

Step-by-step explanation:

If ABCD is a parallelogram then its consecutive angles are supplementary (add up to 180°).

<A + <D = 180°

42 + 3x + 6 = 180

3x + 48 = 180

3x = 132

x = 44

Answer

C. 44