1 / 8

1-4: Measuring Angles

1-4: Measuring Angles. Parts of an Angle. Formed by the union of two rays with the same endpoint . Called sides of the angle Called the vertex of the angle 3 ways to name BAC or C AB A (Vertex) 1. B. Exterior. Interior. 1. A. C. Example 1:. 1). Name the angle below.

bruce-medina
Télécharger la présentation

1-4: Measuring 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. 1-4: Measuring Angles

  2. Parts of an Angle • Formed by the union of two rays with the same endpoint. • Called sides of the angle • Called the vertex of the angle • 3 ways to name • BAC or CAB • A (Vertex) • 1 B Exterior Interior 1 A C

  3. Example 1: 1). Name the angle below. Name the sides and the vertex of the angle. Y 2). Label the 3 points on the figure below so that the angle has sides KQ and KN. 1 X Z Q K N

  4. Protractor Postulate • Consider and a point on one side of . Every ray of the form can be paired one to one with a real number 0 to 180. A O B

  5. Types of Angles Acute Obtuse Right Straight • Congruent Angles • Angles with the same measure • If , then • Or, if , then

  6. 45° 135° a d D A Example 2: What is ?

  7. Postulate 1-8: Angle Addition Postulate • If point B is in the interior of , then: Example 3: If , what are and ?

  8. Homework: p. 31 #’s 6, 7, 12-14, 18-23, 29-31, 33-35

More Related