3.1.1

Angles in Degrees

Test yourself

Size of Angles

We use the word angle to describe the amount of turn between two straight lines that meet at a point. Angles are measured in degrees.

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A full turn

  • A full turn of a circle is 360°.
    • When the minute hand goes from 12 all the way around back to 12, it would have done a 360° turn.
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Quarter past

  • A quarter of a full turn is 90°.
  • We call a 90° angle a right-angle.
    • When the minute hand goes from 12 to quarter past, it would have done a 90° turn.
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Half past

  • Half of a full turn is 180°.
    • When the minute hand goes from 12 to half past, it would have done a 180° turn.
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Quarter to

  • Three quarters of a full turn is 270°.
    • When the minute hand goes from 12 to quarter to, it would have done a 270° turn.

Jump to other topics

1Year 3 - Number

2Year 3 - Measurement

3Year 3 - Geometry

4Year 3 - Statistics

5Year 4 - Number

6Year 4 - Measurement

7Year 4 - Geometry

8Year 4 - Statistics

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