GEOMETRY DRAWING SUPPLIES CONCEPTS AND DEFINITIONS

Freehand:draw by hand without supplies.
Line/Tecnichal drawing:It´s a drawing make with the help of supplies.  
Compass:It´s a tool for drawing circles and arcs.
Protactor:It´s a tool for draw angles and measurement.
Set squares:They are two special rulers.
                    The 45º triangle and the 60º/30º triangle
Ruler:Is a tool for make right lines
Eraser:Is a tool for rub out wrong things.