Using a Protractor

This is a protractor, it helps you measure angles (in degrees):


Protractors are fun and easy to use

Have a look at this animation (press the play button) to see how to make a neat angle using a protractor and ruler:

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Protractors usually have two sets of numbers going
in opposite directions.

Be careful which one you use!

When in doubt think "should this angle be bigger or
smaller than 90° ?"

Have a Go Yourself!

Try to measure the angles A, B, C and D inside this shape.

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Be careful which angle you read from the protractor.

Hint: if you get them all correct, they will add up to 360°


The answers are ... no, that would spoil the fun!