Present to M.Veerasakdi

1
Geometrical Figures
Quadrilateral
Present to M.Veerasakdi
By Pasakorn Chumsilpsiri Class P.4/3 No. 23
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Meaning of Quadrilateral

• Quadrilateral just means "four sides" (quad
  means four, lateral means side).
• Any four-sided shape is a Quadrilateral.
• But the sides have to be straight, and it has to
  be 2-dimensional.

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Types of Quadrilaterals
Rhombus
Square
Trapezoid
Rectangle
Dart
Parallelogram
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Square

• A square has equal
• sides and every angle is a right angle (90)
• Also opposite sides are parallel

5
Rectangle

• A rectangle is a four-sided shape where every
  angle is
• right angle (90).
• Also opposite sides are parallel and of equal
  length.

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Parallelogram
Opposite sides are parallel and equal in length,
and opposite angles are equal (angles "a" are the
same, and angles "b" are the same)
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Rhombus
A rhombus is a four-sided shape where all
sides have equal length. Also opposite
sides are parallel and opposite angles are equal.
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The Trapezoid
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Lets have some fun with Quadrilateral
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