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WELCOME
CONSTRUCTION
OF
QUADRILATERAL
DONE BY,
ANUJA.V.S & RESHMI .S
GOVT.MODEL GIRLS HIGHER SECONDARY SCHOOL
PATTOM
A QUADRILATERAL
IT IS A CLOSED FIGURE WITH FOUR SIDES AND
FOUR ANGLES
DIFERENT TYPES OF QUADRILATERAL
TRAPEZIUM
IT IS A QUADRILATERAL WITH TWO SIDES
ARE PARALLEL .
PARALLELOGRAM
TWO PAIRS OF OPPOSITE SIDES ARE
PARALLEL AND EQUAL IN MEASURE.
DIAGONALS BISECT EACH
OTHER.OPPOSITE ANGLES ARE EQUAL
RHOMBUS
IT IS A QUADRILATERALWITH FOUR
SIDES EQUAL AND BISECTS EACH
OTHER
RECTANGLE
TWO PAIRS OF OPPOSITE SIDESARE
PARALLELAND EQUAL IN
MEASURE.ALL THE ANGLES ARE
EQUAL IN MEASURE.EACH ANGLE IS
90 . DIAGONALS ARE EQUAL IN
MEASURE.
SQUARE
ALL THE FOUR SIDES ARE
EQUAL.ALL THE ANGLES ARE
EQUALWITH EACH ANGLE 90
.DIAGONAL BISECT EACH
OTHER.TWO PAIRS OF OPPOSITE
SIDES ARE PARALLEL.
CONSTRUCTION OF A QUADRILATERAL
TO CONSTRUCT A QUADRILATERAL WE WANT TO FOLLOW FIVE
MEASURES i.e.,- AB = 6.5CM, BC = 5.5CM , CD = 6CM , AD = 4.5CM
AND
A = 70 .
ROUGH FIGURE OF QUADRILATERAL
STEP - 1
DRAW AB OF LENGTH 6.5 CM.
STEP - 2
MARK AN ANGLE OF 70 AT A
STEP - 3
‘ D’ IS ON THE SIDE JUST DRAWN AND IT IS 4.5 CM AWAY
FROM A. MARK THE POSITION OF ‘D ‘ .SO AD =4.5 CM.
STEP - 4
WE HAVE GOT THREE VERTICES OF THE QUADRILATERAL.TO
LOCATETHE FOURTH VERTEX C ,DRAW TWO ARCS FROM B WITH
5.5 CM . IT WILL CUT AT A POINT . THIS POINT IS DENOTED BY C .
NOW WE HAVE COMPLETE THE QUADRILATERAL ABCD.
THANK YOU