CBSE Board Practice

CBSE Grade IX - Quadrilaterals
Question 1
1.
The opposite sides of the parallelogram are
  •  


    IJ
     
     
    &
     


    KL
     
     
    ,
     


    JK
     
     
    &
     


    LI
     
     
  •  


    IJ
     
     
    &
     


    KM
     
     
    ,
     


    JK
     
     
    &
     


    MI
     
     
  •  


    IK
     
     
    &
     


    LJ
     
     
    ,
     


    KL
     
     
    &
     


    JI
     
     
  •  


    IK
     
     
    &
     


    JL
     
     
    ,
     


    KJ
     
     
    &
     


    LI
     
     
  •  


    IJ
     
     
    &
     


    LM
     
     
    ,
     


    JL
     
     
    &
     


    MI
     
     
Question 2
2.
    • In rhombus
    • OPQR
    • , diagonals
    •  


      OQ
       
       
    • and
    •  


      PR
       
       
    • intersect at
    • S
    • . Then
    • QS
    • =
  • OS
  • PS
  • RS
  • RO
Question 3
3.
Which of the following properties apply for a rhombus ?
a)
Opposite angles are equal
b)
Opposite sides are parallel
c)
Diagonals bisect each other
d)
Diagonals are equal
e)
Adjacent angles are equal
f)
Opposite sides are equal
g)
Adjacent sides are equal
  • {d,e,c}
  • {d,a}
  • {a,b,c,f,g}
  • {e,b}
  • {d,f,g}
Question 4
4.
    • In the given figure
    • △DEF
    • ,
    • G
    • is the mid-point of
    •  
    •  


      DE
       
       
    • and
    •  
    •  


      GH
       
       
       


      EF
       
       
    • ,
    • then
    •  
    • DG
    • =
  • GE
  • DH
  • FD
  • DE
  • HF
Question 5
5.
    • In kite
    • LMNO
    • ,
    •  


      LN
       
       
    • and
    •  


      MO
       
       
    • are diagonals. Then
    • OL
    • =
  • NO
  • MO
  • LM
  • MN
  • LN
Question 6
6.
    • In parallelogram
    • MNOP
    • ,
    • diagonals
    •  


      NP
       
       
    • and
    •  


      MO
       
       
    • intersect at
    • Q
    • . Then
    • ∠MNO
       
      =
  • ∠OPM
  • ∠PMN
  • ∠MNQ
  • ∠NOP
  • ∠OPQ
Question 7
7.
    • In parallelogram
    • KLMN
    • ,
    • diagonals
    •  


      LN
       
       
    • and
    •  


      KM
       
       
    • intersect at
    • O
    • . Then
    •  


      NK
       
       
       
  •  


    LN
     
     
  •  


    KM
     
     
  •  


    MN
     
     
  •  


    LM
     
     
  •  


    KL
     
     
Question 8
8.
Which of the following have point symmetry ?
a)
parallelogram
b)
rhombus
c)
square
d)
rectangle
e)
trapezium
f)
quadrilateral
  • {e,f,c}
  • {e,d,a}
  • {f,b}
  • {a,b,c,d}
  • {e,a}
Question 9
9.
In the given figure, FGHI is a rhombus. Given x = 62°, find the value of 'y'.
  • 28°
  • 29°
  • 27°
  • 30°
  • 26°
Question 10
10.
    • In rhombus
    • IJKL
    • , diagonals
    •  


      IK
       
       
    • and
    •  


      JL
       
       
    • intersect at
    • M
    • . Then
    •  


      JK
       
       
  •  


    KL
     
     
  •  


    JL
     
     
  •  


    LI
     
     
  •  


    IJ