1 / 7

4.2 Angles of Triangles

4.2 Angles of Triangles. Objectives: *Apply the Angle Sum Theorem. *Apply the Exterior Angle Theorem. Mrs. S. Williams. Angle Sum Theorem. X. The sum of the measures of the angles of a triangle is 180. W + X + Y = 180. W. Y. Exterior Angle Theorem.

netis
Download Presentation

4.2 Angles of Triangles

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. 4.2 Angles of Triangles Objectives: *Apply the Angle Sum Theorem. *Apply the Exterior Angle Theorem. Mrs. S. Williams

  2. Angle Sum Theorem X • The sum of the measures of the angles of a triangle is 180. • W + X + Y = 180 W Y

  3. Exterior Angle Theorem • The measure of an exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles. 1 = 2 + 3 * 2 and 3 are remote interior angles. 3 2 1

  4. Ex. Angle Sum Theorem 82° • Find the missing angle measures. 28° 1 2 63° 3

  5. Ex. Exterior Angle Sum Theorem 3 • Find the measure of each numbered angle in the figure. 2 1 120° 4 5 50° 56° 78°

More Related