A straight edge is used for making perfectly straight lines when drawing. The straight edge is placed on the paper and you use the edge to draw against.
A ruler or straight edge.
A straight-edge
A straight edge or a ruler are used to construct straight lines.
A compass and straight edge are used to create a polygon but do not limit the number of sides of the polygon created. You have to decide that separately, then use the compass and straight edge to make what you decide on.
No. But there are straight edge "groups" that are a lot like gangs. But no, straight edge itself is not a gang, and a straight edge person is not a gang member.
That's commonly known as a "straight edge".
For making a clean edge with a straight line to it.
A straight edge perhaps?
A protractor, a straight edge and a compass
A straight edge or a rule are used to construct straight lines. Laser line setter, In some cases a plumb line
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).
Yes, some people in the straight edge scene call vitamin water "straight edge water"