1 / 5

Geometry 1-3 Basics of Angles

Geometry 1-3 Basics of Angles. Angle - a figure formed by two rays with a common endpoint. Vertex - The common endpoint of an angle’s rays (plural: vertices). Interior of an angle - in between the sides of the angle. Exterior of an angle - outside of the angle. Types of Angles.

weylin
Télécharger la présentation

Geometry 1-3 Basics of Angles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Geometry 1-3 Basics of Angles Angle- a figure formed by two rays with a common endpoint. Vertex- The common endpoint of an angle’s rays (plural: vertices). Interior of an angle- in between the sides of the angle. Exterior of an angle- outside of the angle.

  2. Types of Angles • Acute angle: less than 90° • Right angle: exactly 90° • Obtuse angle: more than 90°, less than 180° • Straight angle: exactly 180 °

  3. Naming Angles • Angles can be named three ways: • By its vertex R • By a number 1 (if it has one) • By a point on each ray and the vertex SRT or TRS (vertex in the middle!) S Best, safest way! 1 R T

  4. More Vocab. • Congruent angles- angles that have the same measure. • Angle bisector- A ray that divides an angle into two congruent angles Congruent angles: ARW LRW Angle bisector: RW A W R L 40° 40°

  5. Using a Protractor WRS = TRV = W R Q S T V U

More Related