Then, the pencil and square glide smoothly together down the wood as you draw a perfectly straight line. To create the notch, take apart your combo square so you are holding the ruler. Stabilize ...

A protractor is used to draw and measure angles ... A half turn is 180° and is known as a straight angle (or angle on a straight line). A three-quarter turn is 270°. An acute angle is less ...

If you recognise that the equation is that of a straight line graph, then it is not actually necessary to create a table of values. Just two points are needed to draw a straight line graph ...