PPT-Theorems: vertically opposite angles

Draw one straight line crossing another straight line Measure all 4 angles C A B D Angle A Angle B Angle C Angle D. Addition, Subtraction, Multiplication, and Division . Properties. Addition, Subtraction, Multiplication and Division Properties. I CAN…. Use the addition, subtraction, multiplication. and division properties. Corollary 1: The opposite angles of a parallelogram are congruent. Corollary 2: The opposite sides of a parallelogram are congruent. Corollary 3: The diagonals of a parallelogram bisect each othe Circle Theorems. Dr J Frost (jfrost@tiffin.kingston.sch.uk. ). www.drfrostmaths.com. . Last modified: . 31. st. August 2015. RECAP. : Parts of a Circle. Sector. (Minor). Segment. Diameter. Radius. Tangent. CH 3-Perpendicular & Parallel Lines. Geometry I. Takes you to the main menu. Takes you to the help page. There are other buttons explained throughout the PowerPoint. Navigating the PowerPoint. Main Menu. Double Angle. Triangles inside Circles. Angles connected by a . chord. Tangents to a circle. Cyclic Quadrilaterals. 2x. x. This is the ARC. o. Centre of Circle. The Angle . x. subtended at the centre of a circle by an arc is twice the size of the angle on the circumference subtended by the same arc.. What is a vertically integrated utility? What are the conditions that have led to changes in the traditional power system structure ? Power System Structure Power systems traditionally have been what Obj. : Understand and use vertical angle theorem. Why do we need Proofs??????. 1 region. 1 2. 2 regions. 4 regions. 8 regions. 16 regions. How many regions will be in a circle with 6 pts. ?????. Objectives:. Be able to use some properties of parallelograms.. Be able to prove that a quadrilateral is a parallelogram.. Parallelograms. A parallelogram is a quadrilateral with . both pairs of opposite sides parallel. Geometry Unit 9. Inscribed Angles in Circles. Content Objective. : Students will be able to . identify inscribed . angles and their intercepted arcs in circles. . Language Objective. : Students will be able to . Triangles. Isosceles Triangles. leg. leg. base. Vertex angle. Base angle. Base angle. 2 sides are congruent. 2 theorems. If 2 sides are congruent, then base angles are congruent. If 2 . base angles . 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 . 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.. -Polygon. : a closed plane figure with at least 3 sides that are segments that only intersect at their endpoints where no adjacent sides are collinear. -Regular Polygon. : . a polygon that is both equilateral and . ). www.drfrostmaths.com. . Last modified: . 31. st. August 2015. RECAP. : Parts of a Circle. Sector. (Minor). Segment. Diameter. Radius. Tangent. Chord. (Minor) Arc. Circumference. ?. ?. ?. ?. ?. !.