Measuring Angles

Table of Contents

  • Measurement of Angles
  • Unit for Measuring Angles
  • Summary
  • Did You Know?
  • What’s Next?

In the previous segment, we were introduced to the concept of Angles in geometry. We will now learn the method of Measurement of angles.

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    How are angles measured?

    An angle is formed between the initial arm and the terminal arm that intersect at the vertex. To measure the angle, the initial arm is taken as the reference. Then measure the angle of the terminal arm with respect to the initial arm.

    Arms of an angle

    When measuring angles, there are two directions of the angle of measurement with respect to the initial arm:

    • Anti-clockwise: Angles measured in an anticlockwise direction are said to be positive. Angles are usually measured in the anti-clockwise direction.
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