PPT-5. Shape and Angles

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 rightangled triangles. Shape angles Name Date CAREFULLY Colour the shapes with ONE right angle BLUE Colour the shapes with TWO right angles RED Colour the shapes with MOR Angles that form angles Angles that form A A complete revolution complete revolution add up to add up to 360 360 Exam Exam ple ple ABC forms a ABC forms a complete complete revolution with revolution with reflex reflex ABC ABC 360 360 35 325 35 What is p?. A quad is a square. What is the conclusion?. It has 4 right angles. What is the converse?. If a quadrilateral has 4 right angles, then it is a square.. What is the inverse?. If a quad is not a square, then it does not have 4 right angles. Terra Alta/East Preston . School. Geometry Unit. Ray. Ray. --part of a line that has one. endpoint and goes on endlessly. in the other direction.. Congruent. Equal in size and shape.. Degrees. The unit used to. 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 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. 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˚. 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. 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. 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. 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 . A . shape is an element of art. Specifically, . it . is an . enclosed space. , the boundaries of . which . are defined by other elements of . art. Shape. Types of Shape. Geometric: Shapes that have specific rules. 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 .