Angles (estimating angle size)
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Acute angles
Here are six acute angles. A protractor is shown so that the angles can be measured. The questions on page 6 
can be completed with the help of the information provided by this diagram.
Detailed description of diagram
| ∠AOB = 15° |  |
∠AOC= 30° | |
∠AOD = 45° |
| ∠AOE = 60° | ∠AOF = 75° | ∠AOX = 90° |
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