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 ...

If two lines are drawn at right angles to each other, they are said to be perpendicular. A line drawn to cut another line or angle in half is a bisector. The path of a point that moves according to a ...

From the classroom to the office, a sturdy and durable geometry compass can help solve equations, create beautiful designs and finish plans for building projects. Most commonly used in math classes, a ...