Question

Which of the following statements is always true?
a. Lines that do not intersect are parallel lines
b. Two coplanar lines that do not intersect are parallel lines
c. Lies that form a right angle are parallel lines
d. Skew lines are parallel lines

Answer 1

|| = parallel

Answer 2

parallel no intersecty

Answer 3

a

Answer 4

a is never true. u can have skewed lines. these lines also never intersect

Answer 5

i meant a is only sometimes true

Answer 6

so what letter is the correect answer, a,b,c or d?

Answer 7

like i said, a is not correct.
d is not correct, becuz the definition of parallel lines means that those 2 lines must be coplanor, but thats not nessary for skew lines

Answer 8

and c would not be correct, becuz in order for lines to form a right angle, they must intersect, they cant be parallel

Answer 9

thanks

Answer 10

yea. no problem. so with those info, which would be correct through process of elimination

Answer 11

wait, @ehuman why did u delete ur post?

Answer 12

yeah, I had to re-read A and B myself lol

Answer 13

I deleted it because I was in error

Answer 14

oh ok. becuz i just started reading ur long post, but it suddenly went *POOF*

Answer 15

two lines that would cross in the same plane most likely will not cross if in different z planes

Answer 16

A is a reasonable but trick answer until I actually read the correct answer