Question

If the angle between two lines is 0 degrees, the lines are:
a. Perpendicular
b. Parallel
c. Obtuse
d. Acute
e. None of the above

Answer 1

Perpendicular means that the angle between the two lines is ninety degrees.
Obtuse is a term used for angles not lines.
Acute is also used for angles not lines.
So the answer can be either B. Parallel or E. None of the above.
Two lines are parallel if the distance between them is same throughout. This means that the angle between parallel lines is zero degrees.

Answer 2

Thanks!