We all know about the gaggle of geese, the pod of whales, the pride of lions and the pack of wolves. But what on earth do you call a set of parallel lines?
I'll give you a hint. The guys from fun have used some for a colorful backdrop. The proper term for a group of parallel lines is a pencil of lines. In fact, a pencil is a family of geometric objects with a common property, for example the set of lines that are parallel. Just think of the pencils in the background.
I'll give you a hint. The guys from fun have used some for a colorful backdrop. The proper term for a group of parallel lines is a pencil of lines. In fact, a pencil is a family of geometric objects with a common property, for example the set of lines that are parallel. Just think of the pencils in the background. A pencil of planes, the family of planes through a given straight line, is sometimes referred to as a fan. In the image on the left, the 3 planes belong to the pencil of planes that pass through a line of intersection.
No comments:
Post a Comment