In maths, a construction is an accurate drawing. Besides constructing triangles, there are two main constructions which can be done using a ruler, a pair of compasses and a pencil: After the ...

A technician often has to sketch or design ductwork and the other parts of an HVAC system. Sometimes you have to sketch the room or building you are working with. This means working with lines, angles ...

Ah, classic...and relatively easy. In one sentence, draw the perpendicular bisector of any two distinct rods to the circle and they will intersect at the center.