EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Understanding Quadrilaterals
Grade : CBSE Grade VIII
License : Non Commercial Use
Question 1
1.
Sum of the interior angles in a triangle is
  • (i)
    180°
  • (ii)
    195°
  • (iii)
    210°
  • (iv)
    185°
  • (v)
    190°
Question 2
2.
    • In rhombus
    • NOPQ
    • , diagonals
    •  


      NP
       
       
    • and
    •  


      OQ
       
       
    • intersect at
    • R
    • . Then
    • NR
    • =
  • (i)
    OR
  • (ii)
    PR
  • (iii)
    QR
  • (iv)
    QN
Question 3
3.
    • In parallelogram
    • NOPQ
    • ,
    • diagonals
    •  


      OQ
       
       
    • and
    •  


      NP
       
       
    • intersect at
    • R
    • . Then
    • △QNO
       
  • (i)
    △NOR
  • (ii)
    △OPQ
  • (iii)
    △PQN
  • (iv)
    △PQR
  • (v)
    △NOP
Question 4
4.
How many diagonals does an octagon have?
  • (i)
    17
  • (ii)
    19
  • (iii)
    20
  • (iv)
    21
  • (v)
    22
Question 5
5.
    • In parallelogram
    • MNOP
    • ,
    • diagonals
    •  


      NP
       
       
    • and
    •  


      MO
       
       
    • intersect at
    • Q
    • . Then
    • OP
       
      =
  • (i)
    NP
  • (ii)
    NO
  • (iii)
    MN
  • (iv)
    MO
  • (v)
    PM
Question 6
6.
    • In rhombus
    • CDEF
    • , diagonals
    •  


      CE
       
       
    • and
    •  


      DF
       
       
    • intersect at
    • G
    • . Then
    • ∠DGC
  • (i)
    ∠CGF
  • (ii)
    ∠EGD
  • (iii)
    ∠FGE
  • (iv)
    ∠FCD
Question 7
7.
    • In rhombus
    • EFGH
    • , diagonals
    •  


      EG
       
       
    • and
    •  


      FH
       
       
    • intersect at
    • I
    • . Then
    • △FGH
  • (i)
    △GHE
  • (ii)
    △IEF
  • (iii)
    △HEF
  • (iv)
    △EFG
Question 8
8.
    • In rhombus
    • EFGH
    • , diagonals
    •  


      EG
       
       
    • and
    •  


      FH
       
       
    • intersect at
    • I
    • . Then
    • FI
    • =
  • (i)
    HI
  • (ii)
    GI
  • (iii)
    EI
  • (iv)
    HE
Question 9
9.
If the two diagonals of a parallelogram are equal and right bisectors of each other, it is a
  • (i)
    None of these
  • (ii)
    trapezium
  • (iii)
    square
  • (iv)
    rectangle
  • (v)
    rhombus
Question 10
10.
    • In the figure given below,
    • KLMN
    • is a rhombus.
    • Find the values of x and y
  • (i)
    x
    =
    31.26°
    ,
    y
    =
    31.26°
  • (ii)
    x
    =
    28.26°
    ,
    y
    =
    28.26°
  • (iii)
    x
    =
    30.26°
    ,
    y
    =
    30.26°
  • (iv)
    x
    =
    32.26°
    ,
    y
    =
    32.26°
  • (v)
    x
    =
    29.26°
    ,
    y
    =
    29.26°
Question 11
11.
Identify the figure below
  • (i)
    parallelogram
  • (ii)
    circle
  • (iii)
    rhombus
  • (iv)
    square
  • (v)
    angle
Question 12
12.
    • In the figure given below,
    • EFGH
    • is a rectangle.
    • Find the values of x and y
  • (i)
    x
    =
    36.87°
    ,
    y
    =
    73.74°
  • (ii)
    x
    =
    35.87°
    ,
    y
    =
    72.74°
  • (iii)
    x
    =
    34.87°
    ,
    y
    =
    71.74°
  • (iv)
    x
    =
    37.87°
    ,
    y
    =
    74.74°
  • (v)
    x
    =
    38.87°
    ,
    y
    =
    75.74°
Question 13
13.
    • In rhombus
    • LMNO
    • , diagonals
    •  


      LN
       
       
    • and
    •  


      MO
       
       
    • intersect at
    • P
    • . Then
    • ∠NPM
  • (i)
    ∠OPN
  • (ii)
    ∠OLM
  • (iii)
    ∠MPL
  • (iv)
    ∠LPO
Question 14
14.
    • In parallelogram
    • PQRS
    • ,
    • diagonals
    •  


      QS
       
       
    • and
    •  


      PR
       
       
    • intersect at
    • T
    • . Then
    •  


      RS
       
       
       
  • (i)
     


    PR
     
     
  • (ii)
     


    PQ
     
     
  • (iii)
     


    QR
     
     
  • (iv)
     


    QS
     
     
  • (v)
     


    SP
     
     
Question 15
15.
Which of the following figures is a regular quadrilateral?
  • (i)
    square
  • (ii)
    rectangle
  • (iii)
    rhombus
  • (iv)
    trapezium
  • (v)
    parallelogram
Question 16
16.
Which of the following statements are true?
a)
Every square is a rectangle
b)
Every rectangle is a parallelogram
c)
Every square is a rhombus
d)
Every parallelogram is a trapezium
e)
Every rectangle is a rhombus
f)
Every rhombus is a parallelogram
g)
Every parallelogram is a rectangle
  • (i)
    {a,b,c,d,f}
  • (ii)
    {e,d,f}
  • (iii)
    {e,g,c}
  • (iv)
    {g,b}
  • (v)
    {e,a}
Question 17
17.
    • One angle of a parallelogram measures
    • H
    • =
    • 69.98°
    • .
    • Find the measure of each of its remaining angles.
  • (i)
    I
    =
    109.02°
    ,
    J
    =
    68.98°
    ,
    K
    =
    109.02°
  • (ii)
    I
    =
    108.02°
    ,
    J
    =
    67.98°
    ,
    K
    =
    108.02°
  • (iii)
    I
    =
    110.02°
    ,
    J
    =
    69.98°
    ,
    K
    =
    110.02°
  • (iv)
    I
    =
    112.02°
    ,
    J
    =
    71.98°
    ,
    K
    =
    112.02°
  • (v)
    I
    =
    111.02°
    ,
    J
    =
    70.98°
    ,
    K
    =
    111.02°
Question 18
18.
    • In parallelogram
    • IJKL
    • ,
    • diagonals
    •  


      JL
       
       
    • and
    •  


      IK
       
       
    • intersect at
    • M
    • . Then
    • IJ
       
      =
  • (i)
    IK
  • (ii)
    JL
  • (iii)
    KL
  • (iv)
    LI
  • (v)
    JK
Question 19
19.
Which of the following have point symmetry ?
a)
trapezium
b)
square
c)
rectangle
d)
quadrilateral
e)
parallelogram
f)
rhombus
  • (i)
    {a,f,b}
  • (ii)
    {d,c}
  • (iii)
    {a,b}
  • (iv)
    {b,c,e,f}
  • (v)
    {a,d,e}
Question 20
20.
    • In the adjoining figure,
    • EFGH
    • is a parallelogram and
    • IJ
    • is such that
    •  


      IJ
       
       
       


      EG
       
       
    • If
    • ∠EHI = 29.63°
    • and
    • ∠GHJ = 19.66°
    • ,
    • find the measure of
    • ∠EFG
    • .
  • (i)
    131.71°
  • (ii)
    132.71°
  • (iii)
    128.71°
  • (iv)
    129.71°
  • (v)
    130.71°
Question 21
21.
The number of diagonals in a regular polygon with n sides is
  • (i)
    (
    n
    ) (
    n
    +
    2
    )

    2
  • (ii)
    (
    n
    ) (
    n
    3
    )

    2
  • (iii)
    (
    n
    ) (
    n
    +
    3
    )

    2
  • (iv)
    (
    n
    ) (
    n
    2
    )

    2
  • (v)
    (
    n
    ) (
    n
    1
    )

    2
Question 22
22.
    • In the adjoining figure,
    • JKLM
    • is a parallelogram in which
    • ∠MJL = 30.54°
    • ,
    • ∠LJK = 41.99°
    • ,
    • ∠MNL = 74.04°
    • . Calculate
    • ∠KLJ
  • (i)
    31.54°
  • (ii)
    30.54°
  • (iii)
    28.54°
  • (iv)
    32.54°
  • (v)
    29.54°
Question 23
23.
The opposite sides of the quadrilateral are
  • (i)
     


    LN
     
     
    &
     


    OM
     
     
    ,
     


    NO
     
     
    &
     


    ML
     
     
  • (ii)
     


    LN
     
     
    &
     


    MO
     
     
    ,
     


    NM
     
     
    &
     


    OL
     
     
  • (iii)
     


    LM
     
     
    &
     


    NO
     
     
    ,
     


    MN
     
     
    &
     


    OL
     
     
  • (iv)
     


    LM
     
     
    &
     


    OP
     
     
    ,
     


    MO
     
     
    &
     


    PL
     
     
  • (v)
     


    LM
     
     
    &
     


    NP
     
     
    ,
     


    MN
     
     
    &
     


    PL
     
     
Question 24
24.
    • In rhombus
    • IJKL
    • , diagonals
    •  


      IK
       
       
    • and
    •  


      JL
       
       
    • intersect at
    • M
    • . Then
    •  


      JK
       
       
  • (i)
     


    KL
     
     
  • (ii)
     


    IJ
     
     
  • (iii)
     


    LI
     
     
  • (iv)
     


    JL
     
     
Question 25
25.
    • In rhombus
    • JKLM
    • , diagonals
    •  


      JL
       
       
    • and
    •  


      KM
       
       
    • intersect at
    • N
    • . Then
    • ∠KLM
    • =
  • (i)
    ∠LMJ
  • (ii)
    ∠JKN
  • (iii)
    ∠JKL
  • (iv)
    ∠MJK
    Assignment Key

  •  1) (i)
  •  2) (ii)
  •  3) (ii)
  •  4) (iii)
  •  5) (iii)
  •  6) (iv)
  •  7) (iii)
  •  8) (i)
  •  9) (iii)
  •  10) (iii)
  •  11) (iv)
  •  12) (i)
  •  13) (ii)
  •  14) (ii)
  •  15) (i)
  •  16) (i)
  •  17) (iii)
  •  18) (iii)
  •  19) (iv)
  •  20) (v)
  •  21) (ii)
  •  22) (ii)
  •  23) (iii)
  •  24) (iii)
  •  25) (iv)