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```					   DifferEnt
types
of
A powerpoint presentation by
Carmelo Ellul
• Click button to select a quadrilateral.

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

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

D.
.
C
The sum of ALL the angles of a
The TRAPEZIUM
The TRAPEZIUM

• Discuss and write down the properties of
The TRAPEZIUM
The TRAPEZIUM

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

• One pair of opposite sides are parallel

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
The RHOMBUS

• Draw a rhombus of side 6 cm
and discuss the properties of the
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°
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
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