Geometry: Parallel Lines and Triangle Angle Sum Theorem

Geometry, Parallel Lines, Triangle Theorem, Angles, Triangles

• English

alaniul Follow

Uploaded on Mar 04, 2025 | 0 Views

Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.

Presentation Transcript

1. 3-3 Parallel Lines & the Triangle Angle Sum Theorem GEOMETRY

2. Triangle Angle-Sum Theorem The sum of the measures of the angles of a triangle is 180. m A + m B + m C = 180

3. EX. 1) FIND ??.

4. EX. 2) Find the values of x, y, and z.

5. EX.3) Find a.

6. CLASSIFY TRIANGLES BY ANGLES Acute All angles are acute. Right Equiangular All angles are congruent. Obtuse One obtuse angle. One Right Angle.

7. CLASSIFY TRIANGLES BY SIDES Scalene Equilateral All sides are congruent. Isosceles At least two sides are congruent. No Sides are congruent.

8. TRIANGLE EXTERIOR ANGLE THEOREM THE MEASURE OF EACH EXTERIOR ANGLE OF A TRIANGLE EQUALS THE SUM OF THE MEASURES OF ITS TWO REMOTE INTERIOR ANGLES.

9. EX.4) Find a.

10. EX.5) Find a.