Why not see how much you know about this topic already? Then work through the page and see if you can beat your score. Parallel lines are the same distance apart from each other all the way along ...

In April 2019, a video seemingly showing a car turning its wheels perpendicular to the curb in order to exit from a tight parallel parking spot went viral after it was posted to Reddit. A version of ...

Horizontal lines run left to right, parallel to the horizon, with slope 0 and equation y = k. Vertical lines run top to bottom, perpendicular to the horizon, with undefined slope and equation x = k.