CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade IX - Lines and Angles
Question 1
1.
In the given figure l ∥ m. Find the value of 'v'
  • 11
  • 10
  • 14
  • 12
  • 9
Question 2
2.
In the given figure, △DEF in which side EF has been produced to G. If ∠FDE = x° , ∠DEF = (3/2a)° , ∠EFD = (2a)° and ∠DFG = (7a)°, find the values of a and x.
  • a
    =
    20°
    ,
    x
    =
    110°
  • a
    =
    22°
    ,
    x
    =
    112°
  • a
    =
    18°
    ,
    x
    =
    108°
  • a
    =
    21°
    ,
    x
    =
    111°
  • a
    =
    19°
    ,
    x
    =
    109°
Question 3
3.
The following angle represents
  • obtuse angle
  • acute angle
  • zero angle
  • right angle
  • straight angle
Question 4
4.
Find the angles of the triangle
  • C
    =
    62°
    ,
    D
    =
    45°
    ,
    E
    =
    73°
  • C
    =
    58°
    ,
    D
    =
    45°
    ,
    E
    =
    77°
  • C
    =
    58°
    ,
    D
    =
    47°
    ,
    E
    =
    75°
  • C
    =
    60°
    ,
    D
    =
    45°
    ,
    E
    =
    75°
  • C
    =
    60°
    ,
    D
    =
    43°
    ,
    E
    =
    77°
Question 5
5.
Calculate the value of the lettered angle in the following figure
  • x
    =
    61.98°
  • x
    =
    62.98°
  • x
    =
    64.98°
  • x
    =
    60.98°
  • x
    =
    63.98°
Question 6
6.
Which of the following figures represent a line?
  • fig 1
  • fig 2
  • fig 3
Question 7
7.
Multiple lines which do not meet each other are called
  • intersecting lines
  • perpendicular lines
  • concurrent lines
  • parallel lines
  • coplanar lines
Question 8
8.
Which of the following is the largest angle in the given figure?
  • ∠UOW
  • ∠UOX
  • ∠UOV
  • ∠VOX
  • ∠VOW
Question 9
9.
Find the exterior alternate angles in the given figure
  • ∠1 , ∠2 , ∠7 , ∠8
  • ∠1 , ∠2 ; ∠2 , ∠4 ; ∠4 , ∠3 ; ∠3 , ∠1 ; ∠5 , ∠6 ; ∠6 , ∠8 ; ∠8 , ∠7 ; ∠7 , ∠5
  • ∠3 , ∠5 ; ∠4 , ∠6
  • ∠3 , ∠6 ; ∠4 , ∠5
  • ∠1 , ∠8 ; ∠2 , ∠7
Question 10
10.
In a right-angled triangle if one of the acute angles is 57°, find the measure of the other acute angle.
  • 33°
  • 34°
  • 32°
  • 31°
  • 35°