Science, Maths & Technology
Geometry
...careful to use the correct scale. In this case the angle extends from the line OY up to the line OX, so use the scale that shows OY as 0° – the outer scale in this instance. In the above example, one of the arms of the angle is horizontal. However, sometimes you may find that you need to position the protractor in an awkward position in order to measure an angle. You...