Recognize and compare right angles

3rd Grade Math practice: A corner of a book opens exactly like a square corner. Is it a right angle. Part of shapes and angles (Shapes and angles).

~10 min

Compare an angle to a square corner to see if it is a right angle.

Identifying a Right Angle

90°

right angle

A right angle is an angle that forms a perfect square corner, like the corner of a book or a tile. You can check if an angle is a right angle by placing the corner of a square against it to see if it fits perfectly.

💡 If the angle is too wide or too narrow to fit the square corner, it is not a right angle.