Quadrilaterals properties

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Quadrilaterals properties Powered By Docstoc
					   DifferEnt
     types
       of
QUADRILATERALS
       A powerpoint presentation by
          Carmelo Ellul
   Head of Department (Mathematics)
QUADRILATERALS
QUADRILATERALS
• Click button to select a quadrilateral.


                          General Properties
                          Trapezium
                          Parallelogram
                          Rhombus
                          Rectangle
                          Square
QUADRILATERALS
QUADRILATERALS
  • 4 vertices
  • 4 sides        .B
  • 4 angles A
               .


           D.
                        .
                            C
          QUADRILATERALS
          QUADRILATERALS
                  .B
     A.
                                                 360o
                                            .B
                            A.
D.
                       .
                       C
                       D.
           The sum of ALL the angles of a
                quadrilateral is 360o            .
                                                     C
          QUADRILATERALS
          QUADRILATERALS
                  .B
     A.
                                            360o

D.
                       .
                           C
           The sum of ALL the angles of a
                quadrilateral is 360o
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      The TRAPEZIUM
      The TRAPEZIUM




• Discuss and write down the properties of
  a trapezium with your friend.
      The TRAPEZIUM
      The TRAPEZIUM




• One pair of opposite sides are parallel
      The TRAPEZIUM
      The TRAPEZIUM




• One pair of opposite sides are parallel



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The PARALLELOGRAM
    PARALLELOGRAM




• Draw a parallelogram and try to
  find as many of its properties as
  you can.
The PARALLELOGRAM



• Opposite sides are equal
• Opposite sides are parallel
• Opposite angles are equal
• Diagonals bisect each other
The PARALLELOGRAM



• Opposite sides are equal
• Opposite sides are parallel
• Opposite angles are equal
• Diagonals bisect each other
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        The RHOMBUS




• Draw a rhombus of side 6 cm
  and discuss the properties of the
  rhombus with your friend (you
  can use a dictionary if you want).
         The RHOMBUS



•   All sides are equal
•   Opposite sides are parallel
•   Opposite angles are equal
•   Diagonals bisect each other at 90°
         The RHOMBUS



•   All sides are equal
•   Opposite sides are parallel
•   Opposite angles are equal
•   Diagonals bisect each other at 90°
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     The RECTANGLE
         RECTANGLE




• How many properties belonging to
  the rectangle can you find?
        The RECTANGLE
            RECTANGLE



•   Opposite sides are equal
•   Opposite sides are parallel
•   All angles are right angles (90o)
•   Diagonals are equal and bisect one another
        The RECTANGLE
            RECTANGLE



•   Opposite sides are equal
•   Opposite sides are parallel
•   All angles are right angles (90o)
•   Diagonals are equal and bisect one another
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          The SQUARE



• Play a game with your friend. In one
  minute each of you must write as many
  properties the square has on a piece of
  paper. The one with the greatest number
  of correct properties is the WINNER.
          The SQUARE



•   All sides are equal
•   Opposite sides are parallel
•   All angles are right angles (90o)
•   Diagonals are equal and bisect one
    another at right angles
          The SQUARE



•   All sides are equal
•   Opposite sides are parallel
•   All angles are right angles (90o)
•   Diagonals are equal and bisect one
    another at right angles
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posted:2/11/2012
language:English
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