Judging by appearance, name in this order) an acute angle, an obtuse angle, and a right angle:
Geography · Middle School · Thu Feb 04 2021
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An acute angle is less than 90 degrees. It looks like a sharp corner and is smaller than a right angle. An obtuse angle is more than 90 degrees but less than 180 degrees.
1. Acute angle - An example would be an angle of 45 degrees. 2. Obtuse angle - An example would be an angle of 120 degrees. 3. Right angle - This is always 90 degrees.