chart of quadrilateral

All parallelograms are quadrilateral, all rectangles are parallelogram, all squares are rectangle, and rhombus.

 

quadrilaterals. 

Quadrilateral is a four sided figure. 


1) parallelogram

Properties of parallelogram

 

1.    Opposite sides are parallel, i.e. AB parallel to DC and AD parallel to BC 

2.    Opposite sides are equal, i.e.  AB= CD and AD=BC

1. Opposite sides are parallel, i.e. AB parallel to DC and AD parallel to BC 2. Opposite sides are equal, i.e. AB= CD and AD=BC3. Opposite angles are equal, i.e. angle A = angle B 4. Sum of co interior(or adjacent) angle is 180, i.e. <A+<B=180, <B+<C=180, <C+<D=180, <D+<A=180 5. Diagonal bisect each other i.e. OA=OC and OD=OB.

3.    Opposite angles are equal, i.e. angle A = angle B

4.    Sum of co interior(or adjacent) angle is 180, i.e. <A+<B=180, <B+<C=180, 

<C+<D=180, <D+<A=180

5.    Diagonal bisect each other i.e. OA=OC and OD=OB. 




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