Question

Line a makes an angle of 30 degrees with the line b, also line c makes an angle of 30 degrees with line b. Then, ______ .

• A. line a || line b
• B. line a ⊥ line c
• C. line a ⊥ line b
• D. line a || line c

Answer 1

The correct option is D

line a || line c

If two lines make equal angle with the third line. Then the two lines are parallel to each other.
In this case, line a and lines c makes an angle of 30^o with the line b. Therefore, line a and line c are parallel to each other.