PPT-4.3 Exterior Angles of a Triangle

Exterior Angles and Triangles An exterior angle is formed by one side of a triangle and the extension of another side ie 1 The interior angles of the triangle not adjacent to a given exterior angle are called the . Draw one straight line crossing another straight line. Measure all 4 angles.. C. A B. D. Angle A = Angle B Angle C = Angle D. Section 4.2. Objectives. Find angle measures in triangles.. Key Vocabulary. Corollary. Exterior angles. Interior angles. Theorems. 4.1 Triangle Sum Theorem. Corollary to the Triangle Sum Theorem. 4.2 Exterior Angle Theorem. Objectives. State the triangle angle sum theorem and solve for an unknown angle in a triangle. Classify triangles based on measures of angles as well sides. State the triangle exterior angle theorem and solve for an unknown exterior angle of a triangle. Objectives. State the triangle angle sum theorem and solve for an unknown angle in a triangle. Classify triangles based on measures of angles as well sides. State the triangle exterior angle theorem and solve for an unknown exterior angle of a triangle. Hubarth. Geometry. 10.7 Measure . of an Inscribed Angle. .. C. A. B. D. Ex 1 Use Inscribed Angles. a.. m. . T.  . mQR. b.. Find the indicated measure in. . P. .. M T = . mRS. =. . Thursday, October 17. Math Message. Label unit 3.9 and the date at the top of your Math Response. Complete the following in your Math Notebook:. Using a straightedge, draw a big triangle in your notebook. Geometry Unit 4. Angles of A Triangle. Content Objective. : Students will be able to identify the properties and classifications of specific triangles, using them to solve problems.. Language Objective. Drawings 1 - 2. #1. Perpendicular to a line. #2. Skew lines and transversal. Drawings 3 - 4. #3. Parallel lines and transversal. #4. Marking congruent angles. Drawings 5 - 6. #5. Acute angles. #6. Obtuse angles. Transversal Line. Alternate. Plane H. m. n. t. 65. . 65. . Interior. Angles. If a transversal line passes through parallel lines the . ALTERNATING INTERIOR ANGLES . are . CONGRUENT. .. Interior. and. . 4.2/1-10. Lessons 4.1 and 4.2 . Triangle Sum Properties & Properties of Isosceles Triangles. -. Classify triangles and find measures of their angles.. - Discover the properties of Isosceles Triangles.. Geometry. 5.1 Angles of Triangles. Essential Question. How are the angle measures of a triangle related?. 5.1 Angles of Triangles. November 21, 2016. 5.1 Angles of Triangles. November 21, 2016. Goals – . Angles of Triangles Objectives Find angle measures in triangles. Key Vocabulary Supplementary Angles Complementary Angles Exterior angles Interior angles Additional Vocabulary Theorem - Mathematics. a theoretical proposition, statement, or formula embodying something to be proved from other propositions or formulas. 2. a rule or law, especially one expressed by an equation or formula 4. quadrilateral . 5. pentagon. 6. hexagon. 7. heptagon. 8. octagon. 9. nonagon. 10. decagon. 11. undecagon. 12. dodecagon. 6.1 . Angles of Polygons. Then/Now. You named and classified polygons. . Find and use the sum of the measures of the interior angles of a polygon.. WORSHIP. SUBJECT: MATHEMATICS. TOPIC- TRIANGLES. DAVCMC TEXTBOOK(MATHEMATICS). WORK. IS . WORSHIP. E-BOOK. https://drive.google.com/file/d/1iWa6vZGRWP6xhNlJZHhbDRpftAO--uv7/view?usp=sharing.