Page 17 - Key Stage 3 Geometry
P. 17
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Looking at the rotation of 1 , it’s not very noticeable.
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Even for 2 rotation it’s still only slightly different. By
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the time you reach 5 the rotation is quite evident and
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by the time you have a rotation of 50 you will notice
a big difference.
Having gained an insight into the size of angles, we are
going to look closely at your protractor for drawing
angles and also for measuring angles.
2.1 The Protractor
A very useful instrument in your Helix box,
In this diagram you can see the details of the angles.
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Starting on the left-hand side at 0 as you move
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