Question 1: Find the measure of A. A B C 145° 44°.
Holt McDougal Geometry Angle Relationships in Triangles 150° 73° 1; Parallel Post. Warm Up 1. Find the measure of exterior DBA of BCD, if mDBC = 30°,
Parallel Lines and the Triangle Angle-Sum Theorem Geometry Mrs. King Unit 3, Lesson 3.
Warm-up The roundest knight at King Arthur’s round table was Sir Cumference He acquired his size from too much pi. When the butcher backed into the meat.
§ 7.1 Segments, Angles, and Inequalities § 7.4 Triangle Inequality Theorem § 7.3 Inequalities Within a Triangle § 7.2 Exterior Angle Theorem.
3.5 Parallel Lines and Triangles Parallel Postulate –Through a point not on a line, there is one and only one line parallel to the given line.
Bellringer Find the slope going through the points. Use the given information to write an equation for each line. 1. 2. (2, 3), ( 1, 6) 1. m=-2/3.
120 ⁰ 15x+5 ⁰ 22x+4 ⁰. “If two lines are parallel and a transversal is perpendicular to one line, then it is perpendicular to the other. Reason: Corresponding.
Chapter 3.1 Common Core G.CO.1 & G.CO.9 Know precise definitions of…parallel line. Prove theorems about lines and angles. Objectives – To identify relationships.
Geometry Chapter 4 Review
Chapter 4 Notes. 4.1 – Triangles and Angles A Triangle Three segments joining three noncollinear points. Each point is a VERTEX of the triangle. Segments.
Classifying Triangles & Angles of Triangles Sections 4-1 & 4-2.
