Student Tutorial: Geometry Basics: Categorizing Angles

Instructions:

Learn about angles. For this tutorial you'll be using the Desmos Geometry Tools, which are free: https://www.desmos.com/geometry. Watch the video and follow along using the Desmos tools.

Click the arrows on the bottom to get started

Math Clip Art: Student Tutorial Title Page

Acute Angle. An angle whose measure is less than 90°.

Right Angle. An angle whose measure is 90°.

Angle. An angle whose measure is greater than 90°.

Categorizing Angles Title Card

Angle measures range from 0° to 360°.

Angles are categorized based on their angle measures.

Acute angles are angles that measure less than 90°.

Right angles are angles that are 90°.

Obtuse angles are angles that are greater than 90°.

A Straight Angle is 180°.

Examples of acute angles.

Examples of right angles.

Examples of obtuse angles.