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A kite string, a ruler edge, a torch beam. What shapes are they?

Every corner where two bars meet is an angle.

This is Chapter 2, Lines and Angles, in your NCERT book.

What you will learn

  • Point, line, ray, segment. Four shapes with different ends.
  • Two lines. Lines that cross, and lines that never meet.
  • What is an angle. Two rays that share one start point.
  • Measuring. Degrees, and how a protractor reads them.
  • Kinds of angles. Acute, right, obtuse, straight and reflex.
  • Drawing. Making an angle of an exact size.
  • Angles around us. Doors, scissors and clocks.

Need a quick recap?

  • Shapes around us (Track Zero). Counting the corners of a shape.