VOCABULARY ART GEOMETRY

Freehand: Draw by hand without guiding instruments measurement.
Drawing: It is a drawing made whit the help of anything.It is usually use the drawing for architecture or enginiering plans
Compass: It is an instrument used for draw circles, arcs and for measuring distances between two points.
Protactor: Is an instrument to measure angles. Usually it is a semicircular transparent plastic sheet graduated in degrees.
Set squares: They are two specials rulers whit a triangular shapes. One is called the 45º triangle and the other is called the 60º/30º triangle. Both have the 90º angle and use for made angles and parallels lines.
Ruber: It is an instrument use for erase something.
Ruler: It is an instrument used to draw straight lines.