Basic Angle Concepts

Front

Full Rotation (360°)

Back

A complete turn or angle that measures exactly 360°, forming a full circle.

Front

Angle Measurement

Back

The size of an angle, usually measured in degrees (°).

Front

Protractor

Back

A tool used to measure the size of an angle in degrees.

Front

Degree (°)

Back

A unit of measurement for angles. A full circle is 360 degrees.

Front

Compose (Angles)

Back

To combine two or more angles to form a larger angle. For example, two smaller angles can be composed to make a larger angle, such as two 45° angles composing a 90° angle.

Front

Decompose (Angles)

Back

To break a larger angle into smaller angles. For example, a 90° angle can be decomposed into two 45° angles.