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h Street is petpendicuiar to Elm Avenue LECH is an obtuse angle m Avenue is parallel to Disk Drive LABE is an acute. Measur i ng Instruments Tacheometers And Theodolites Angle s & Directions An angle is defined as the difference in direction between two convergent lines . A horizontal angle is formed by the direc Sections 3-1. What you’ll learn. How to identify the relationships between two lines or two planes. How to name angles formed by a pair of lines and a transversal. Vocabulary. . Parallel lines. Parallel planes. By: Amethyst boyd. Parallel vs. Perpendicular. Parallel. Equal distance between lines from top to bottom.. Never intersect. Same slopes. EXAMPLES:. Perpendicular. Intersect forming 90 degree lines. On same plane. 8.G.5. Essential Question. ?. What can you conclude about the angles formed by parallel lines that are cut by a transversal?. Common Core Standard. :. 8.G ─Understand . congruence and similarity using physical models, transparencies, or geometry software.. Conduct Experiments 1-3. Write down the goal for each experiment in your notes . Answer every question; that is something that has a question mark.. Experiment 1. Goal. To find out how many points determine a line.. Theorem. 6.13. If a tangent. and a chord intersect at a point on the circle, then the measure of each angle formed is one half the measure of its intercepted arc.. http://demonstrations.wolfram.com/TangentChordAngle/. What is a Proof?. A . written account . of the complete thought process that is used to reach a conclusion.. Each step is supported by a . theorem, postulate or definition. What is in a Proof?. A statement of the original problem. L.E.Q. What special angles are created by two lines cut by a transversal and how are they related?. Remember:. What would you call two lines which do not intersect?. Parallel. A solid arrow placed on two lines of a diagram indicate the lines are parallel.. Algebra 1 Unit 5: Writing equations of lines. Parallel Lines. What are parallel lines?. Parallel lines are two lines that never intersect each other.. Where have you seen examples in real-life?. Lines on a road. 1. . What is the relationship between LN and MO. ?. Perpendicular bisector. 2. . What is the value of . x?. X=10. 3. . Find . LM. . 4. . Find . LO.. 3. LM= 50. 4.LO=50. Bellwork. - MA.912.G.1.3. In . Pencil. Handouts you picked up. Work silently & independently. DO NOW!:. . Fill in . the blank with . always. , . sometimes. , or . never. .. If . two planes intersect, then they intersect . at a line.. This Slideshow was developed to accompany the textbook. Big Ideas Geometry. By Larson and Boswell. 2022 K12 (National Geographic/Cengage). Some examples and diagrams are taken from the textbook.. Slides created by . Section 3.1 Big Ideas Geometry. Parallel Lines: Two lines that do not intersect and are coplanar. The symbol for parallel is || and is read “is parallel to”. So m||n reads “line m is parallel to line n”. Table of Contents. Syllabus. Unit . 1: Fundamentals of Geometry. Concept 1: Geometric Terms. Homework. Concept 2: Collinear and Coplanar. Homework. Concept 3: Intersections. Homework. Concept 4: Measuring Postulates .