PPT-Angles and Geometry

91015 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. Addition, Subtraction, Multiplication, and Division . Properties. Addition, Subtraction, Multiplication and Division Properties. I CAN…. Use the addition, subtraction, multiplication. and division properties. 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 Definitions. Complementary angles – the sum of their measures is 90˚. Each angle is the compliment of the other. A. B. 32˚. 58˚. Definitions. Supplementary angles – the sum of their measures is 180˚. Two Angles are Complementary if . and only if they . add up to 90 degrees (a Right Angle).. Definition of Complementary Angles. They don't have to be next to each other, just so long as the total is 90 degrees.. Thursday, October 17. Math Message. Label unit 3.9 and the date at the top of your Math Response. Complete the following in your Math Notebook:. Using a straightedge, draw a big triangle in your notebook. TeacherTwins©2014. Warm Up. Identify the pairs of angles as complementary or supplementary or neither.. 1). 45. ◦ . and 45. ◦ . 2). 36. ◦. and 54. ◦. 3). 65. ◦. and 115. ◦. 4). 135. Shape and Angles. Assumed knowledge. recall and use properties of angles. angles at a point. angles at a point on a straight line. perpendicular lines. vertically opposite angles. distinguish between scalene, isosceles, equilateral and right-angled triangles. Angle . Notation – Three Possibilities. A. B. C. Vertex. Congruent Angles & Angle Measure. 30˚. A. B. C. D. E. Angle Bisector. A. B. C. D. “ If . . bisects. . .  . Using your Protractor. 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 . Vocabulary. Complimentary Angles – When two angles add up to 90°. Supplementary Angles – When two angles add up to 180°. Using Complimentary & Supplementary Angles. Vocabulary Review. Acute Angle. Geometry Common Core Test Guide. Sample Items. Old or New?????. Old or New?. Old or New?. Trees that are cut down and stripped of their branches for timber are . approximately cylindrical. . A timber company specializes in a certain type of tree that has a . 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. . The vertical distance from rotary table to Point B is called a true vertical depth. The inclination angle ‘I’ is the angle between vertical and the wellbore. . The direction angle ‘A’ is specified as the azimuth between the geographic north and the projection of a wellbore on a horizontal plane.. 27-731 (normally, 27-750). Texture, Microstructure & Anisotropy. A.D. (Tony) Rollett. Last revised: 4. th. Jan. 2020. 2. Lecture Objectives. Show how to convert from a description of a crystal orientation based on .