PPT-Proportional Segments between Parallel Lines

Look for the similar Triangles Parallel Lines and Transversal Alternate interior angles are congruent if the lines are parallel Corresponding angles are congruent if the lines are parallel Could use SSI to prove lines parallel. 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. Parallel and Perpendicular Lines. Perpendicular lines. are two lines that intersect to form a 90º. . angle. . Parallel and Perpendicular Lines. Parallel lines. are two lines that, if extended indefinitely, would never cross or touch. Bell Ringer…. Are 2/3 and 6/12 proportional?. No; 6/12 = 1/2 ≠ 2/3. Are 2/3 and 10/15 proportional?. Yes; 2/3 = (2*5)/(3*5) = 10/15. Are 2/3 and 4/9 proportional?. No; both are simplified. Proportional Shapes. Remember to Silence Your Cell . Phone and Put It In Your Bag!. Proportional Variance. Two quantities . vary proportionally. iff as their corresponding values increase or decrease, the ratios of the two quantities are always equivalent.. WALL FOLLOWER. © 2015, EV3Lessons.com, Last edit 11/17/2015. Learn how to use proportional control with the ultrasonic sensor to follow walls. Prerequisites: Data Wires, Proportional Control, Loops, Math Blocks, Sensor Blocks. Parallel Lines and Transversal. Alternate interior angles are congruent if the lines are parallel. Corresponding angles are congruent if the lines are parallel. Given the picture list all corresponding angles, list all Alternate interior angles (assume lines are parallel). A professional development program to help teachers better understand the mathematical reasoning needed for ratio, proportion, and proportional reasoning.. To understand the importance and significance of ratio, proportion, and proportional reasoning in the middle grades mathematics curriculum.. Directly Proportional. Directly proportional: as one amount increases, . another amount increases at the same rate. .. Hence, the straight line when we graph information. Directly Proportional. Example: you are paid $20 an hour. WALL FOLLOWER. © 2015, EV3Lessons.com, Last edit 11/17/2015. Learn how to use proportional control with the ultrasonic sensor to follow walls. Prerequisites: Data Wires, Proportional Control, Loops, Math Blocks, Sensor Blocks. 1-41..  Make a table and a graph to represent each of the situations below.. Parvin. often cleans the dishes for her mother.  She can clean 17 plates in 10 minutes.  How many plates can she clean in different amounts of time? . 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.. Watch for Parallel Lines,. Transversals, and. Angle Bisectors.  . Side Splitter Theorem. (related to . Midsegment. . Theorem). If a line is parallel to ONE side of a triangle AND intersects the other two sides, then it divides those other TWO sides proportionally.. 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. 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”.