PLEASE HELP! a little confused

----------------------------------------------

In Exercises 6, determine which of the lines are parallel and which of the lines are perpendicular. ​

PLEASE HELP a little confusedIn Exercises 6 determine which of the lines are parallel and which of the lines are perpendicular class=

Respuesta :

D and c are parallel
D and a are perpendicular
D and b are perpendicular
C and a are perpendicular
C and b are perpendicular