PPT-5-3 Use Angle Bisectors of Triangles

Holt Geometry Warm Up Lesson Presentation Lesson Quiz Warm Up Construct each of the following 1 A perpendicular bisector 2 An angle bisector 3 Find the midpoint and slope of the segment . Playground. Volleyball Court. Tennis Court. 5.3 part A Concurrent Lines, medians and altitudes. LEQ: What are the properties of concurrent lines and how can we use them in problem solving?. When 3 or more lines intersect at one point, they are concurrent.. July 2011. Subject Content = Covered. We are working on applications. Multistep and practical problems. 3 Dimensional problems. Setting out the steps in a logical and clear manner, which may include drawing triangles. Section 1.5 – Division of Segments and Angles. LEARNER OBJECTIVE: Students will identify midpoints, 
 bisectors, trisection points, and trisectors.. LEARNER OBJECTIVE: Students will identify midpoints, bisectors, trisection 
 points, and trisectors.. Sines. /Cosines. All triangles we have dealt with to this point involve only . right. triangles. Certainly, we have other types of triangles that will occur in real life and math purposes. What other types of triangles could we have?. 4.2. SSS Postulate (Just call it SSS). If . three sides of one triangle . are congruent to. three sides of another triangle, . then the triangles are congruent.. SAS Postulate (Just call it SAS). If . A. . = . B. . C. . D. . = .  . Warm-Up. ~Write one sentence explaining what answer you chose.. ~Write one sentence explaining what answers you were able to eliminate.. Polygons and Triangles. The word polygon means many (poly) angles (gon). This includes triangles, squares, rectangles, trapezoids, parallelograms, . Helpful websites. http://www.regentsprep.org/Regents/mathb/1c/preprooftriangles.htm. http://www.mathwarehouse.com/geometry/congruent_triangles/. http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Congruent-Triangles.topicArticleId-18851,articleId-18788.html. Using properties of perpendicular bisectors and angle bisectors. Perpendicular bisectors. What do we know about the right triangles formed when we draw an isosceles triangle that has a bisector of its vertex angle?. Warm Up. 1.. . Draw a triangle and construct the bisector of one angle.. 2.. . JK. is perpendicular to . ML. at its midpoint . K. . List the congruent segments. . Draw a picture.. 3.6—Bisectors of a Triangle. Constructing Triangles. Common Core 7.G.2. Vocabulary. Uniquely defined. Ambiguously defined. Nonexistent. Triangle Inequality Theorem. Let’s review what we learned yesterday with this video. . http://. Objectives:. Find the measures of interior and exterior angles of triangles.. Apply theorems about the interior and exterior angles of triangles.. Supplies: Math Notebook. Textbook. Assignment: p. 228 #15-23(skip 17), 29-32. Warm Up. 1. . Find each angle measure.. True or False. If false explain.. 2.. Every equilateral triangle is isosceles.. 3.. Every isosceles triangle is equilateral.. . 60°; 60°; 60°. True. False; an isosceles triangle can have only two congruent sides.. Chapter 4. This Slideshow was developed to accompany the textbook. Larson Geometry. By Larson. , R., Boswell, L., . Kanold. , T. D., & Stiff, L. . 2011 . Holt . McDougal. Some examples and diagrams are taken from the textbook.. What You Will Learn. Use and find the circumcenter of a triangle.. Use and find the . incenter. of a triangle.. Using the Circumcenter of a Triangle. When three or more lines, rays, or segments intersect in the same point, they are called .