PPT-Angles on Straight Lines

What Sum of angles on straight lines How Discovering how to measure angles at different points on straight lines Why A o B 10 20 30 40 50 60 70 80 90   o   A O B A O B. Draw one straight line crossing another straight line. Measure all 4 angles.. C. A B. D. Angle A = Angle B Angle C = Angle D. 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 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.. 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.. 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. 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. When drawing, h. ow . do straight lines become curved lines?. Designed for DVI by Camilla S. Haneberg. What is a line anyway?. Line has MANY different meanings: you can wait in line, there is a line of scrimmage in football, line is used in math all the time, it can be a fabricated thought…”can you believe the line that guy used?”. 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. 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.. 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.. 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.. Pgs. 26, 28, 30. Warmup. (pg. 23) . The measures of 2 Vertical Angles are 90 and (5x 10). Find the value of x.. The measure of an angle is twice the measure of its compliment. . What’s a Transversal? . 1. 2.. Now put it all together to solve for the missing angle.. Unit 6 – Day 3. Inscribed and Circumscribed. Today’s Objectives. Students will use properties of Central angles and Tangent lines to solve for missing parts. 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”.