Angles and Polygons 0.0 / 5 ? MathematicsAnglesGCSEAQA Created by: [email protected]Created on: 09-05-18 12:17 An angle smaller than a right angle Acute angle 1 of 16 90 degrees or a one-quarter turn Right angle 2 of 16 Greater than 90 degrees but smaller than 180 degrees Obtuse angle 3 of 16 Greater than 180 degrees but smaller than 360 degrees Reflex angle 4 of 16 When referring to parallel lines: angles in the corners of a Z shape Alternate angles 5 of 16 When referring to parallel lines: angles under the arms of an F shape Corresponding angles 6 of 16 A direction defined by a three-figure angle measured clockwise from north. Three-figure bearing 7 of 16 A 2D shape with straight edges A polygon 8 of 16 All sides are equal and all angles are equal Regular 9 of 16 A three sided polygon A triangle 10 of 16 A four sided polygon A quadrilateral 11 of 16 Exactly the same shape and size Congruent 12 of 16 The same shape but different in size. Similar 13 of 16 The ratio of corresponding lengths in two similar shapes. Scale factor 14 of 16 The angle between tow sides inside a polygon. Interior angle 15 of 16 The angle between one side of a polygon and the next side extended. Exterior angle 16 of 16

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