PPT-1.4 Measure & Classify Angles

Angles amp Their Names Angle consists of two different rays with the same endpoint Sides the rays of the angle Vertex the endpoint of the angle Name the 3 angles or or or   Angles amp Their Measures. Identify the type of angle.. 1.. 70°. 2.. 90°. 3.. 140°. 4.. 180°. . acute. right. obtuse. straight. SPI 6.4.2: I will learn to understand relationships of angles. 8.3 Angle Relationships. Vocabulary. Central Angles. Central Angle. (of a circle). Central Angle. (of a circle). NOT A. Central Angle. (of a circle). A . central angle. is an angle whose vertex is the CENTER of the circle. CENTRAL ANGLES AND ARCS. Given circle of radius . r. , a radian is the measure of a central angle subtended by an arc length . s. equal to r. . The radian measure of an arbitrary angle. There are radians in a angle. Why? . Quiz (B). Course 3. 1) Classify . the . sketch below using the choices provided.. 80°. 100°. a) complementary. b) supplementary. c) vertical. d) none of the above. 2) Classify . the . sketch below using the choices provided.. Polygons. Unit of Study . 10. : Plane Shapes. Global Concept Guide: 2 of 4. Content Development. Students need opportunities to define shapes based on attributes. Example: a triangle is any closed figure made up of three line segments that connect only at vertices.. • Two rays with the same endpoint. • The rays are the sides . of the angle. .. • The common endpoint . of the 2 rays is the . vertex of the angle.. Name the sides and vertex of this angle:. 9.10.15. Do Now. Define the following:. Acute angle. Straight angle. Right angle. Obtuse angle. Ray. Line. Line segment. How do you prove you are right?. Proving You . A. re Right. We write an explanation of our thinking or thought process. Chapter 6.1. Angles are formed by two rays that have a common endpoint (vertex).. The first ray you draw is called the initial side.. The second ray you draw is called the terminal side.. Initial Side. 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 . Unit 3: This unit Introduces Transversals, and angles based on transversals, including corresponding angles, Same Side Interior Angles, Alternate Exterior and Alternate Interior Angles, and the unique properties of Perpendicular Transversals. . Course 3. 1) Classify . the . sketch below using the choices provided.. 80°. 100°. a) complementary. b) supplementary. c) vertical. d) none of the above. 2) Classify . the . sketch below using the choices provided.. Measure angles with a protractor. Identify and use the angle addition postulate. Warm-Up: . Find the indicated value. AC = 20; AB = _____. A. B. C. x-4. 2x 3. Vocabulary:. Degree:. The most common unit of angle measure.. Warm Up. 1.. . Draw opposite rays . . . and . .. . Solve . each equation.. 3.. 2. x. 3 . x. – 4 3. x. – 5 = . 180 . .  . 2.. Draw . . . and . , . where . A. , . . B. , and . adjacent angles. complementary angles. supplementary angles. Congruent angles. have the same measure.. Vertical angles. are formed opposite each other when two lines intersect. Vertical angles have the same measure, so they are always congruent..