ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VIII - Lines and Angles
Question 1
1.
    • The complementary angle of
    • 26°
    • is
  • 94°
  • 64°
  • 79°
  • 74°
  • 69°
Question 2
2.
    • The representation
    •  

      KL
       
       
    • indicates
  • angle
  • arc
  • line
  • ray
  • line segment
Question 3
3.
Two lines meeting at a point and making an angle of 90° at the meeting point are called
  • concurrent lines
  • perpendicular lines
  • parallel lines
  • coplanar lines
  • intersecting lines
Question 4
4.
The following angle represents
  • reflex angle
  • complete angle
  • zero angle
  • right angle
  • straight angle
Question 5
5.
Which of the following are true for alternate angles?
a)
They are adjacent angles
b)
Both are interior angles
c)
They are not adjacent angles
d)
They are on either side of the transversal
e)
They are in the same side of the transversal
f)
One is interior angle and the other is exterior
  • {a,b}
  • {f,a,d}
  • {b,c,d}
  • {e,c}
  • {e,b,c}
Question 6
6.
The following angle represents
  • complete angle
  • zero angle
  • reflex angle
  • straight angle
  • obtuse angle
Question 7
7.
Which of the following are true?
a)
If two lines are parallel to the same line, then they are perpendicular to each other
b)
    • If
    •  
    • a
    • ⟂
    • b
    •  
    • and
    •  
    • b
    • ⟂
    • c
    •  
    • , then
    •  
    • a
    • ⟂
    • c
c)
If two lines are parallel to the same line, then they are parallel to each other
d)
    • If
    •  
    • a
    • ∥
    • b
    •  
    • and
    •  
    • b
    • ∥
    • c
    •  
    • , then
    •  
    • a
    • ∥
    • c
e)
    • If
    •  
    • a
    • ⟂
    • b
    •  
    • and
    •  
    • a
    • ⟂
    • c
    •  
    • , then
    •  
    • b
    • ⟂
    • c
  • {b,d,c}
  • {e,a,c}
  • {c,d}
  • {a,c}
  • {b,d}
Question 8
8.
Find the interior alternate angles in the given figure
  • ∠1 , ∠5 ; ∠2 , ∠6 ; ∠3 , ∠7 ; ∠4 , ∠8
  • ∠1 , ∠4 ; ∠2 , ∠3 ; ∠5 , ∠8 ; ∠6 , ∠7
  • ∠3 , ∠6 ; ∠4 , ∠5
  • ∠3 , ∠4 , ∠5 , ∠6
  • ∠1 , ∠2 ; ∠2 , ∠4 ; ∠4 , ∠3 ; ∠3 , ∠1 ; ∠5 , ∠6 ; ∠6 , ∠8 ; ∠8 , ∠7 ; ∠7 , ∠5
Question 9
9.
Find the value of j in the figure below
  • 14
  • 15
  • 18
  • 13
  • 16
Question 10
10.
    • Consider the following figure
    • ⟷
      DK
    • .
    • State which of the following statements are true?
a)
N,S are end points of line segment
 

SD
 
 
b)
D,A,N,K,S are points on the line
⟷
DK
c)
D,K are points on the line segment
 

AS
 
 
d)
D,K are end points of line segment
 

DK
 
 
e)
D,K are end points of line segment
 

AS
 
 
  • {a,b}
  • {e,a,b}
  • {b,d}
  • {c,d,b}
  • {c,d}