Question

If a third plane could be drawn which contains both lines a and b, then what must the lines be?

Answer 1

The line a and line b are parallel to each other since if you draw another line or a third plane and it contains both points both in line a and in line b it means that this third plane passes through to the both lines a and b.  In order to achieve both lines a and b can be passed by the third plane, they should be parallel to each other.

Answer 2

Answer:

a

Step-by-step explanation: