Classifying angles

Types of angles worksheets: right, acute and obtuse

An acute angle is an angle between 0° and 90°.  An obtuse angle is more than 90° and less than 180°.  A right angle is an angle of exactly 90°. In these worksheets, students classify angles as straight, right, acute or obtuse.

Classifying angles worksheets


With hints:
Worksheet button #1


No hints:
Worksheet button #2


Real-life examples:
Worksheet button #3







Right angles

Lines, segments, rays and angles

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