CBSE Board Practice

CBSE Grade VIII - Understanding Quadrilaterals
Question 1
1.
Which of the following are true?
a)
A rhombus is a trapezium
b)
A trapezium is a rhombus
c)
A rectangle is a square
d)
A trapezium is a parallelogram
e)
A parallelogram is a trapezium
  • {d,b,a}
  • {a,e}
  • {b,a}
  • {c,e}
  • {c,e,a}
Question 2
2.
    • In rhombus
    • JKLM
    • , diagonals
    •  


      JL
       
       
    • and
    •  


      KM
       
       
    • intersect at
    • N
    • . Then
    • ∠NLM
  • ∠JNM
  • ∠NJK
  • ∠MJN
  • ∠KLN
Question 3
3.
    • Find the number of sides in a regular polygon if each
    • exterior
    • angle is
    • 18°
  • 20
  • 23
  • 19
  • 21
  • 17
Question 4
4.
Two angles of a quadrilateral are of measure 80.28° and 66.1° respectively and the other two angles are equal. Find the measure of each of the equal angles.
  • 106.81°
  • 107.81°
  • 108.81°
  • 104.81°
  • 105.81°
Question 5
5.
    • In kite
    • BCDE
    • ,
    •  


      BD
       
       
    • and
    •  


      CE
       
       
    • are diagonals. Then
    • DE
    • =
  • CE
  • CD
  • BC
  • EB
  • BD
Question 6
6.
How many diagonals does a decagon have?
  • 32
  • 35
  • 36
  • 34
  • 37
Question 7
7.
Two adjacent angles of a parallelogram NOPQ are in the ratio 3 : 3. Find the measure of each of its angles.
  • N
    =
    89°
    ,
    O
    =
    88°
    ,
    P
    =
    91°
    ,
    Q
    =
    92°
  • N
    =
    92°
    ,
    O
    =
    89°
    ,
    P
    =
    88°
    ,
    Q
    =
    91°
  • N
    =
    90°
    ,
    O
    =
    90°
    ,
    P
    =
    90°
    ,
    Q
    =
    90°
  • N
    =
    88°
    ,
    O
    =
    92°
    ,
    P
    =
    89°
    ,
    Q
    =
    91°
  • N
    =
    91°
    ,
    O
    =
    89°
    ,
    P
    =
    92°
    ,
    Q
    =
    88°
Question 8
8.
    • In kite
    • MNOP
    • ,
    •  


      MO
       
       
    • and
    •  


      NP
       
       
    • are diagonals. Then
    • MN
    • =
  • OP
  • NP
  • PM
  • MO
  • NO
Question 9
9.
Which of the following statements are true?
a)
Every parallelogram is a rectangle
b)
Every rectangle is a rhombus
c)
Every rectangle is a parallelogram
d)
Every square is a rectangle
e)
Every rhombus is parallelogram
  • {a,b,e}
  • {a,c}
  • {c,d,e}
  • {a,c,d}
  • {b,d}
Question 10
10.
Name all quadrilaterals whose opposite sides are parallel
  • square,parallelogram
  • square,kite
  • parallelogram,square,rhombus,rectangle
  • rectangle,rhombus
  • square,rectangle