Generally a ruler is a straight edge, but it can be anything... I generally just use a spare pencil.
Chat with our AI personalities
A ruler has markings, a straight edge does not. In "straight edge and compass" constructions, you are not allowed to mark the straight edge. Things that are impossible using only a straight edge and compass are possible if markings are allowed (for example, it's possible to trisect an angle using a marked straight edge).
2 points. However, the farther apart the 2 points the striaghter the line will be, unless you move the straight edge!!.
a tattoo that has something to do with straight-edge, a subculture and lifestyle choice about not drinking, doing drugs or having casual sex. a straight-edge tattoo could be lyrics from an edge band or x's.
You do not have to do anything!
Actually it really is called an edge!