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Compare angles to a right angle

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Learn it A right angle is a square corner, like the corner of a book. Narrower angles are less than a right angle; wider ones are greater.

Example: Is this angle less than, equal to, or greater than a right angle?

  1. Imagine the corner of a page in the angle.
  2. The arms open wider than the square corner.
  3. So it is greater than a right angle.

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