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∠4 and ∠6 are same-side interior angles. Find each angle measure. Question 11. m∠AGE when m∠FHD = 30° _________ ° Answer: m∠AGE = 30° Explanation: ∠AGE and ∠FHD are alternate exterior angles. Therefore, m∠AGE = m∠FHD = 30° m∠AGE = 30° Question 12. m∠AGH when m∠CHF = 150° _________ ° Answer: 150° Explanation: ∠AGH and ∠CHF are corresponding angles. Lesson 4-4 Chapter 4 25 Glencoe Algebra 1 Study Guide and Intervention (continued) Parallel and Perpendicular Lines Perpendicular Lines Two nonvertical lines are perpendicular if their slopes are negative reciprocals of each other. Vertical and horizontal lines are perpendicular. Write an equation in slope-intercept form for the line that passes Chapter 4 11 Glencoe Geometry Study Guide and Intervention Angles of Triangles Triangle Angle-Sum Theorem If the measures of two angles of a triangle are known, the measure of the third angle can always be found. Triangle Angle Sum Theorem The sum of the measures of the angles of a triangle is 180. In the figure at the right, m∠A + m∠B + m TIPS4RM: Grade 8: Unit 4 - Lines, Angles, Triangles, and Quadrilaterals 2 Unit`4: Day 1: Ancient Structures Grade 8 Math Learning Goals • Students will classify quadrilaterals by properties related to sides and angles (review only) • Students will investigate the properties of the diagonals of each of the quadrilaterals Materials 4¬ x LM 2x 3 LM 2(4) 3 8 3 LM 11 11. BC 6CD because they both have length 10 inches. BE ED because they both have length 8 inches. BA DAbecause they both have length 14.4 inches. Pages 17-19 Practice and Apply 12. Each inch on the ruler is divided into sixteenths. Point B is closer to the 11 5 6-inch mark.Thus,AB is about 11 5 The objectives of this module are to help you: explain key land description terminology, apply The Public Land Survey System Study Guide 5 of 34 Along the north-south line, the surveyor establishes township lines north and south from the initial The Public Land Survey System Study Guide 6 of 34 Correct Answer: B. 5 Answer Key Lesson 1.2 Study Guide 1. 10 2. 12 3. 6 4. 12 5. congruent !SEGMENTBISECTORISAPOINT RAY LINE LINESEGMENT ORPLANETHAT 3 and 4, 4 and 5; vertical angles: 3 and 5 5. 90 8, 90 8 6. 120 8, 60 8 7. 135 8, 45 8. Author: User09 Created Date: 9/19/2011 9:25:52 AM Chapter 1 - Points, Lines, and Planes, Segments & Angles. Chapter 1 Test Review - Click Ch 4 and 6 Cumulative Review Packet Answer Key - Click Study Guide and Intervention (continued) Angles and Parallel Lines Algebra and Angle Measures Algebra can be used to find unknown values in angles formed by a transversal and parallel lines. Example If ml-I = 3x + 15, ml-2 = 4x — 5, 111/—3 = 5y, and nzL4 = 6z + 3, find x and y. p Il q, so m Ll = m L 2 because they are corresponding angles. 4 of 360°, or 90°. The other angles of rotation for the figure are the multiples of that are 90° less than 360°. So the angles of rotation are 90°,180°, and 270°. Number of lines of symmetry: 4 Angles of rotation: 90°, 180°, 270° B Step 1 Look for lines of symmetry. One line divides the figure into left and right halves. KEY EXAMPLE (Lesson 3.3) Find the angle in MODULE 3 MIXED REVIEW 1. A line segment with pointsR (3, 5) and S (5, 5) is reflected across the liney = -x and answer to the problem. Study Guide Review 154 MODULE 3 DO NOT EDIT--Changes must be made through "File info" MRS.
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