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 ...

This KS2 maths article explores how an angle is a measure of a turn. Learn how to draw and measure angles using a protractor.

Use This Simple Trick to Measure an Angle Using Only a Level It's all about the plumb.