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 ...

What you need: ruler, protractor, pencil and paper. Use these to construct a triangle when you know the length of 1 side and the 2 angles at each end of it. In this case use the length 8 cm, and the ...

A protractor is used to draw and measure angles. An angle is the amount of turn between two lines. Angles are measured in degrees with the symbol °. Angles can be labelled with 3 letters (eg DEF) to ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. We all remember math class in grade school and being asked to calculate angles for a ...

WASHINGTON (ABC7) — If you need a protractor for any of our lessons and activities, please feel free to print it and use this resource. Find the protractor template below: ...