Everyone learns the number one rule about triangles in high school: the angles of a triangle add up to 180 degrees. But did you know that sometimes they don't? Triangles are much more interesting than ...

Parallel lines close parallel lines Lines which never meet and stay the same distance apart. Parallel lines are indicated by a pair of arrows. are two or more straight lines that remain the same ...

A race! Oh, don't forget to stretch guys. Parallel lines always stay the same distance apart, so they will never cross, no matter how long they go on for. And that's why they're used in races. Ready ...

View Wall Drawing 356 B, An isometric triangle outlined by 3-inch 7.5 cm bands. Within each plane are 3-inch 7.5 cm wide black bands of parallel lines in one of three directions. by Sol LeWitt on ...