PPT-Lines and Angles

Terra AltaEast Preston School Geometry Unit Ray Ray part of a line that has one endpoint and goes on endlessly in the other direction Congruent Equal in size and shape Degrees The unit used to. Angles are ACUTE angles Angles equal to 90 are RIGHT angles Angle are OBTUSE angles Angles equal to 180 Angles more than 180 are REFLEX angles CH 3-Perpendicular & Parallel Lines. Geometry I. Takes you to the main menu. Takes you to the help page. There are other buttons explained throughout the PowerPoint. Navigating the PowerPoint. Main Menu. Angle Relationships . Parallel Lines are j & k. Transversal is l. Corresponding Angles. “Corresponding” means “matching”, so corresponding angles are the ones at the same location at each intersection.. PART III. PARALLEL UNIVERSE. When two numbers are the same in mathematics, we say they are. equal.. When two figures in mathematics are exactly the same, we say they are . congruent.. Technically, . By: Preston Williamson. 4/2/13. D6. Ms. Howell’s . Table of Contents. Page 1- Parallel Lines. Page 2- Two Congruent Objects. Page 3- Vertical Angles. Page4- Perpendicular Lines. Page 5- Sine. Page 6-Cosine. Objective Learn to recognize parallel and perpendicular lines. . Parallel and Perpendicular Lines…. A . plane. is an infinite, flat surface. Lines in a plane that never meet are called . parallel Lines. and a Transversal. Vocabulary. Parallel lines. : Lines in the same plane that have the same slope and never intersect. . Transversal. : A line that intersects two or more parallel lines.. Interior Angles. Lilyana. . abina. , . Deseray. Hendrickson, Xia Her. The . Client’s . Problem... Wants a creative and innovative designed stair case railing. Discover fresh ideas. To see more exciting creative ideas. Protractor: . What do you notice? . Task One: . Look at the protractor. Write down everything that you notice about the protractor. Try and come up with at least . 10 facts. Think about . number patterns . Lines & planes. Parallel lines. : two lines in the same plane that don’t intersect.. Skew Lines. : two lines . not. in the same plane that don’t intersect.. Parallel Planes. : two planes that don’t intersect.. Students will be able to. Determine whether two lines are parallel. Write flow proofs. Define and apply the converse of the theorems from the previous section. Objectives. You can use certain angle pairs to determine if two lines are parallel. Geometry. Chapter 3. 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.. Section 3.1 – Lines and Angles. I CAN identify relationships between figures in space.. I CAN identify angles formed by two lines and a transversal.. Key Vocabulary:. Parallel Lines. Skew Lines. Parallel Planes. 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”.