Download - Quadrilateral
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SUBTOPICS:-1.Introduction2.Angle Sum Property of Quadrilateral3.Types of Quadrilateral
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INTRODUCTION QUADRILATERAL – A closed figure,in a
plane bounded by four line segments is called a quadrilateral.
A B
C
D
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ANGLE SUM PROPERTY OF QUADRILATERAL
The sum of all the angles of a quadrilateral is 360°.This can be verified by drawing a diagonal and dividing a quadrilateral into two triangles.
A B
CD
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TYPES OF QUADRILATERALS
Trapezium
Parallelogram
Rectangle
Rhombus
Square
Kite
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TRAPEZIUM A quadrilateral in which one pair of
opposite side is parallel is called a TRAPEZIUM.
In figure , ABCD is a trapezium because here ,AB II DC.
A
Parallel sides never meet.
A B
CD
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PARALLELOGRAM A quadrilateral in which both pairs
of opposite sides are parallel is called a PARALLELOGRAM.
In the figure , ABCD is a parallelogram because ABIIDC and DAIICB.
Indicates equal sides
A B
CD
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RECTANGLE It is a special parallelogram whose
one angle is right angle. In the figure , ABCD is a rectangle
because ABIICD and ADIIBC and A=90°.
Indicates equal sides
Box indicates 900 angle
A
D C
B
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RHOMBUS It is a special parallelogram whose
all sides are equal. In the figure , ABCD is a rhombus
because ABIICD , ADIIBC and AB=BC=CD=DA.A B
CD
All four sides are equal
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SQUARE It is a special parallelogram in
which all the sides are equal and one angle is right angle.
In the figure , ABCD is a square because ABIICD ,ADIIBC and AB=BC=CD=DA and A=90°.Indicates equal
sides
Box indicates 900 angle
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KITE A quadrilateral in which two pairs
of adjacent sides are equal is called a KITE.
In the figure , ABCD is a kite because AD=CD and AB=BC.
Indicates equal sides
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SUBMITTED BY :-1.Karan Singh Rawat2.Abhishek Bhardwaj 3.Samarth Sharma4.Harshit Sharma5.Atul Kumar 6.Paras Gupta7.Diwaker Baggan8.Nitin Mehta
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Submitted To -
MR. GUR AJAY PAL SINGH