Drawing Angles

Drawing Angles Using a Protractor

In this lesson we will look at how to use a protractor to help us measure and draw angles. In another lesson, we will look at how we may construct angles with the use of compasses instead of protractors.

To draw an angle ABC, which is 55˚.

Step 1: Draw a line BC and mark B as the vertex.

Step 2: Place the centre of the protractor at the vertex B and adjust the base line to be aligned to BC.

Step 3: Find 55˚ on the outer scale of the protractor and mark that point as point A.

Step 4: Remove the protractor and draw a line from point B to point A

Step 5: Label and ABC

The following video will show you how to draw and measure angles using a protractor.

Draw and measure angles using a protractor

The following video will show you how to use a protractor to draw acute angles, right angles, obtuse angles and reflex angles.

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