A technician often has to sketch or design ductwork and other parts of an HVAC system. This means working with lines, angles, and other shapes. This article shows you how to draw and work with these ...

Without using a protractor, a good estimate for the first angle is 135° because it is midway between 90° and 180°. A good estimate for the second angle would be 170° because it is almost a ...

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