Basic Geometrical Ideas Class 6 Note | DailyHomeStudy

Main Concepts And Results

  • A line segment corresponds to the shortest distance between two points.
  • The line segment joining points A and B is denoted as AB or as BA.
  • A ray with initial point A and a point B on it is denoted as AB  Line AB is denoted as AB
  • Two distinct lines in a plane that cross at a point are called intersecting lines, otherwise they are called parallel lines.
  • Two rays with a common initial point form an angle.
  • A simple closed curve made of line segments only is called a polygon.
  • A polygon of three sides is called a triangle and that of four sides is called a quadrilateral.
  • A polygon with all its sides equal and all its angles equal is called a regular polygon.
  • A figure, every point of which is equidistant from a fixed point is called a circle.
  • The fixed point is called its centre and the equal distance is called its radius.
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