These lines are actually parallel even though they appear to curve.
These lines are straight as an arrow.
I bet you get this one wrong!
Do you think the red lines are wavy? Well they arn't.
Once again, these lines are straight as an arrow.
Can you tell us what vertical line is longer? Post your answer in our comments.
Is it really that easy? I've been doing it all wrong!
I guess you should have tied the trampoline down!