However, for the lines to be parallel, the distance between the lines always stays the same. Perpendicular lines meet at a right angle. A right angle is a quarter turn, which is 90 degrees (90˚).

Parallel lines always ... You drawing your own lines now, are you? Come on don't be a sore loser. Perpendicular lines cross at right angles. That's why they're not used in running races.

This wasn’t simply a matter of forcing Świątek to hit one more shot; it was a 19-year-old finding the lines and angles that had Świątek’s head on a swivel as she watched ball after ball ...

With increasing interest in developing antifibrotic therapies, there is a need for cell lines that preserve the in vivo phenotype of human HSCs to elucidate pathways of human hepatic fibrosis. We ...