EduSahara™ Assignment
Name : Types of Triangles
Chapter : Triangles and Its Properties
Grade : SSC Grade VII
License : Non Commercial Use
Question 1
1.
Which of the following are measures of an equilateral triangle ?
  • (i)
    IJ = 15 cm , JK = 12 cm , KI = 11 cm
  • (ii)
    IJ = 10 cm , JK = 10 cm , KI = 14.14 cm
  • (iii)
    IJ = 14 cm , JK = 14 cm , KI = 14 cm
  • (iv)
    IJ = 13 cm , JK = 11 cm , KI = 13 cm
  • (v)
    IJ = 15 cm , JK = 13 cm , KI = 19.85 cm
Question 2
2.
Which of the following are measures of an isosceles triangle ?
  • (i)
    IJ = 12 cm , JK = 13 cm , KI = 10 cm
  • (ii)
    IJ = 11 cm , JK = 11 cm , KI = 11 cm
  • (iii)
    IJ = 12 cm , JK = 14 cm , KI = 13 cm
  • (iv)
    IJ = 14 cm , JK = 11 cm , KI = 14 cm
  • (v)
    IJ = 10 cm , JK = 12 cm , KI = 15.62 cm
Question 3
3.
Which of the following are measures of a scalene triangle ?
  • (i)
    DE = 10 cm , EF = 10 cm , FD = 10 cm
  • (ii)
    DE = 13 cm , EF = 15 cm , FD = 13 cm
  • (iii)
    DE = 11 cm , EF = 11 cm , FD = 15.56 cm
  • (iv)
    DE = 10 cm , EF = 14 cm , FD = 13 cm
  • (v)
    DE = 10 cm , EF = 15 cm , FD = 10 cm
Question 4
4.
Which of the following are measures of a right angled triangle ?
  • (i)
    BC = 15 cm , CD = 12 cm , DB = 19.21 cm
  • (ii)
    BC = 12 cm , CD = 15 cm , DB = 14 cm
  • (iii)
    BC = 14 cm , CD = 11 cm , DB = 14 cm
  • (iv)
    BC = 15 cm , CD = 23 cm , DB = 11 cm
  • (v)
    BC = 10 cm , CD = 10 cm , DB = 10 cm
Question 5
5.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    IJ = 10 cm , JK = 13 cm , KI = 15 cm
  • (ii)
    IJ = 13 cm , JK = 13 cm , KI = 18.38 cm
  • (iii)
    IJ = 14 cm , JK = 10 cm , KI = 15 cm
  • (iv)
    IJ = 13 cm , JK = 13 cm , KI = 13 cm
  • (v)
    IJ = 11 cm , JK = 17 cm , KI = 11 cm
Question 6
6.
Which of the following are measures of an acute angled triangle ?
  • (i)
    CD = 11 cm , DE = 15 cm , EC = 18.6 cm
  • (ii)
    CD = 13 cm , DE = 14 cm , EC = 10 cm
  • (iii)
    CD = 13 cm , DE = 23 cm , EC = 15 cm
  • (iv)
    CD = 13 cm , DE = 22 cm , EC = 13 cm
  • (v)
    CD = 11 cm , DE = 11 cm , EC = 15.56 cm
Question 7
7.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    MN = 11 cm , NO = 16 cm , OM = 10 cm
  • (ii)
    MN = 10 cm , NO = 10 cm , OM = 14.14 cm
  • (iii)
    MN = 14 cm , NO = 13 cm , OM = 10 cm
  • (iv)
    MN = 12 cm , NO = 10 cm , OM = 15.62 cm
  • (v)
    MN = 13 cm , NO = 13 cm , OM = 10 cm
Question 8
8.
Which of the following are measures of an equilateral triangle ?
  • (i)
    BC = 11 cm , CD = 11 cm , DB = 15.56 cm
  • (ii)
    BC = 14 cm , CD = 14 cm , DB = 14 cm
  • (iii)
    BC = 12 cm , CD = 13 cm , DB = 12 cm
  • (iv)
    BC = 10 cm , CD = 11 cm , DB = 12 cm
  • (v)
    BC = 10 cm , CD = 13 cm , DB = 16.4 cm
Question 9
9.
Which of the following are measures of an isosceles triangle ?
  • (i)
    LM = 10 cm , MN = 14 cm , NL = 10 cm
  • (ii)
    LM = 12 cm , MN = 10 cm , NL = 15 cm
  • (iii)
    LM = 12 cm , MN = 14 cm , NL = 13 cm
  • (iv)
    LM = 14 cm , MN = 14 cm , NL = 14 cm
  • (v)
    LM = 11 cm , MN = 10 cm , NL = 14.87 cm
Question 10
10.
Which of the following are measures of a scalene triangle ?
  • (i)
    AB = 14 cm , BC = 11 cm , CA = 15 cm
  • (ii)
    AB = 11 cm , BC = 13 cm , CA = 11 cm
  • (iii)
    AB = 11 cm , BC = 12 cm , CA = 11 cm
  • (iv)
    AB = 11 cm , BC = 11 cm , CA = 11 cm
  • (v)
    AB = 11 cm , BC = 11 cm , CA = 15.56 cm
Question 11
11.
Which of the following are measures of a right angled triangle ?
  • (i)
    GH = 14 cm , HI = 10 cm , IG = 17.2 cm
  • (ii)
    GH = 14 cm , HI = 19 cm , IG = 10 cm
  • (iii)
    GH = 15 cm , HI = 11 cm , IG = 13 cm
  • (iv)
    GH = 15 cm , HI = 15 cm , IG = 11 cm
  • (v)
    GH = 11 cm , HI = 11 cm , IG = 11 cm
Question 12
12.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    HI = 14 cm , IJ = 12 cm , JH = 10 cm
  • (ii)
    HI = 12 cm , IJ = 15 cm , JH = 11 cm
  • (iii)
    HI = 10 cm , IJ = 10 cm , JH = 14.14 cm
  • (iv)
    HI = 11 cm , IJ = 21 cm , JH = 14 cm
  • (v)
    HI = 13 cm , IJ = 13 cm , JH = 13 cm
Question 13
13.
Which of the following are measures of an acute angled triangle ?
  • (i)
    NO = 10 cm , OP = 18 cm , PN = 14 cm
  • (ii)
    NO = 11 cm , OP = 13 cm , PN = 14 cm
  • (iii)
    NO = 12 cm , OP = 17 cm , PN = 10 cm
  • (iv)
    NO = 12 cm , OP = 13 cm , PN = 17.69 cm
  • (v)
    NO = 12 cm , OP = 12 cm , PN = 16.97 cm
Question 14
14.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    MN = 15 cm , NO = 12 cm , OM = 15 cm
  • (ii)
    MN = 11 cm , NO = 11 cm , OM = 15.56 cm
  • (iii)
    MN = 10 cm , NO = 19 cm , OM = 12 cm
  • (iv)
    MN = 11 cm , NO = 11 cm , OM = 13 cm
  • (v)
    MN = 14 cm , NO = 11 cm , OM = 17.8 cm
Question 15
15.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠J = 53.75° , ∠K = 90° , ∠L = 36.25°
  • (ii)
    ∠J = 66.12° , ∠K = 56.94° , ∠L = 56.94°
  • (iii)
    ∠J = 40.16° , ∠K = 64.53° , ∠L = 75.31°
  • (iv)
    ∠J = 60° , ∠K = 60° , ∠L = 60°
  • (v)
    ∠J = 45° , ∠K = 90° , ∠L = 45°
Question 16
16.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠H = 60° , ∠I = 60° , ∠J = 60°
  • (ii)
    ∠H = 70.81° , ∠I = 61.28° , ∠J = 47.91°
  • (iii)
    ∠H = 49.09° , ∠I = 90° , ∠J = 40.91°
  • (iv)
    ∠H = 66.74° , ∠I = 56.63° , ∠J = 56.63°
  • (v)
    ∠H = 58.67° , ∠I = 80.25° , ∠J = 41.08°
Question 17
17.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠F = 61.28° , ∠G = 69.98° , ∠H = 48.74°
  • (ii)
    ∠F = 60° , ∠G = 60° , ∠H = 60°
  • (iii)
    ∠F = 66.74° , ∠G = 56.63° , ∠H = 56.63°
  • (iv)
    ∠F = 45° , ∠G = 90° , ∠H = 45°
  • (v)
    ∠F = 85.98° , ∠G = 47.01° , ∠H = 47.01°
Question 18
18.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠L = 60° , ∠M = 60° , ∠N = 60°
  • (ii)
    ∠L = 72.62° , ∠M = 44.42° , ∠N = 62.96°
  • (iii)
    ∠L = 92.73° , ∠M = 45.52° , ∠N = 41.75°
  • (iv)
    ∠L = 42.51° , ∠M = 90° , ∠N = 47.49°
  • (v)
    ∠L = 57.12° , ∠M = 44.42° , ∠N = 78.46°
Question 19
19.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠O = 61.28° , ∠P = 47.91° , ∠Q = 70.81°
  • (ii)
    ∠O = 45° , ∠P = 90° , ∠Q = 45°
  • (iii)
    ∠O = 48.37° , ∠P = 76.33° , ∠Q = 55.3°
  • (iv)
    ∠O = 119.17° , ∠P = 33.47° , ∠Q = 27.36°
  • (v)
    ∠O = 60° , ∠P = 60° , ∠Q = 60°
Question 20
20.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠P = 49.76° , ∠Q = 90° , ∠R = 40.24°
  • (ii)
    ∠P = 70.46° , ∠Q = 54.77° , ∠R = 54.77°
  • (iii)
    ∠P = 103.43° , ∠Q = 45.78° , ∠R = 30.79°
  • (iv)
    ∠P = 101.2° , ∠Q = 39.4° , ∠R = 39.4°
  • (v)
    ∠P = 45° , ∠Q = 90° , ∠R = 45°
Question 21
21.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠D = 108.63° , ∠E = 31.12° , ∠F = 40.25°
  • (ii)
    ∠D = 67.38° , ∠E = 67.38° , ∠F = 45.24°
  • (iii)
    ∠D = 45° , ∠E = 90° , ∠F = 45°
  • (iv)
    ∠D = 38.66° , ∠E = 90° , ∠F = 51.34°
  • (v)
    ∠D = 54.31° , ∠E = 54.31° , ∠F = 71.38°
Question 22
22.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠P = 88.86° , ∠Q = 45.57° , ∠R = 45.57°
  • (ii)
    ∠P = 45° , ∠Q = 90° , ∠R = 45°
  • (iii)
    ∠P = 45.57° , ∠Q = 76.87° , ∠R = 57.56°
  • (iv)
    ∠P = 60° , ∠Q = 60° , ∠R = 60°
  • (v)
    ∠P = 56.31° , ∠Q = 90° , ∠R = 33.69°
Question 23
23.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠F = 43.03° , ∠G = 90° , ∠H = 46.97°
  • (ii)
    ∠F = 56.25° , ∠G = 73.62° , ∠H = 50.13°
  • (iii)
    ∠F = 72.44° , ∠G = 53.78° , ∠H = 53.78°
  • (iv)
    ∠F = 60° , ∠G = 60° , ∠H = 60°
  • (v)
    ∠F = 46.46° , ∠G = 52.26° , ∠H = 81.28°
Question 24
24.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠J = 46.26° , ∠K = 66.87° , ∠L = 66.87°
  • (ii)
    ∠J = 97.18° , ∠K = 41.41° , ∠L = 41.41°
  • (iii)
    ∠J = 60° , ∠K = 60° , ∠L = 60°
  • (iv)
    ∠J = 51.32° , ∠K = 59.17° , ∠L = 69.51°
  • (v)
    ∠J = 45° , ∠K = 90° , ∠L = 45°
Question 25
25.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠O = 113.74° , ∠P = 28.65° , ∠Q = 37.61°
  • (ii)
    ∠O = 47.73° , ∠P = 90° , ∠Q = 42.27°
  • (iii)
    ∠O = 53.13° , ∠P = 67.38° , ∠Q = 59.49°
  • (iv)
    ∠O = 69.07° , ∠P = 69.08° , ∠Q = 41.85°
  • (v)
    ∠O = 60° , ∠P = 60° , ∠Q = 60°
Question 26
26.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠N = 60° , ∠O = 60° , ∠P = 60°
  • (ii)
    ∠N = 45° , ∠O = 90° , ∠P = 45°
  • (iii)
    ∠N = 55.3° , ∠O = 48.37° , ∠P = 76.33°
  • (iv)
    ∠N = 123.24° , ∠O = 27.14° , ∠P = 29.62°
  • (v)
    ∠N = 57.12° , ∠O = 44.42° , ∠P = 78.46°
Question 27
27.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠K = 98.63° , ∠L = 38.99° , ∠M = 42.38°
  • (ii)
    ∠K = 45° , ∠L = 90° , ∠M = 45°
  • (iii)
    ∠K = 62.72° , ∠L = 54.56° , ∠M = 62.72°
  • (iv)
    ∠K = 40.24° , ∠L = 90° , ∠M = 49.76°
  • (v)
    ∠K = 120.14° , ∠L = 29.93° , ∠M = 29.93°
Question 28
28.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠E = 45° , ∠F = 90° , ∠G = 45°
  • (ii)
    ∠E = 67.38° , ∠F = 45.24° , ∠G = 67.38°
  • (iii)
    ∠E = 66.74° , ∠F = 56.63° , ∠G = 56.63°
  • (iv)
    ∠E = 53.75° , ∠F = 90° , ∠G = 36.25°
  • (v)
    ∠E = 117.82° , ∠F = 28.62° , ∠G = 33.56°
Question 29
29.
Find the measures of the three sides suitable to form a triangle?
  • (i)
    OP = 13 cm , PQ = 14 cm , QO = 15 cm
  • (ii)
    OP = 16 cm , PQ = 5 cm , QO = 8 cm
  • (iii)
    OP = 17 cm , PQ = 10 cm , QO = 6 cm
  • (iv)
    OP = 20 cm , PQ = 13 cm , QO = 5 cm
  • (v)
    OP = 5 cm , PQ = 6 cm , QO = 12 cm
Question 30
30.
Find the measures of the three angles suitable to form a triangle?
  • (i)
    ∠J = 104.60° , ∠K = 64.90° , ∠L = 67.20°
  • (ii)
    ∠J = 115.40° , ∠K = 39.50° , ∠L = 32.60°
  • (iii)
    ∠J = 85.60° , ∠K = 104.10° , ∠L = 59.10°
  • (iv)
    ∠J = 43.20° , ∠K = 95.50° , ∠L = 40.10°
  • (v)
    ∠J = 59.17° , ∠K = 51.32° , ∠L = 69.51°
Question 31
31.
In a right angled triangle, if one of the angles is 49.4°, find the third angle
  • (i)
    40.6°
  • (ii)
    70.6°
  • (iii)
    50.6°
  • (iv)
    45.6°
  • (v)
    55.6°
Question 32
32.
In a right angled triangle, if one of the angles is 40.24°, find the third angle
  • (i)
    79.76°
  • (ii)
    54.76°
  • (iii)
    49.76°
  • (iv)
    64.76°
  • (v)
    59.76°
Question 33
33.
Consider the following figure. State which of the following statements are true
a)
    •  


      IJ
       
       
    • =
    •  


      JH
       
       
b)
    •  


      JH
       
       
    • =
    •  


      HI
       
       
c)
    •  


      HI
       
       
    •  


      IJ
       
       
d)
    •  


      JH
       
       
    •  


      HI
       
       
e)
    •  


      HI
       
       
    • =
    •  


      IJ
       
       
f)
    •  


      IJ
       
       
    •  


      JH
       
       
  • (i)
    {c,a}
  • (ii)
    {a,b,e}
  • (iii)
    {f,c,e}
  • (iv)
    {d,a,b}
  • (v)
    {d,b}
Question 34
34.
Consider the following figure. State which of the following statements are true
a)
    •  


      GH
       
       
    •  


      HI
       
       
b)
    •  


      GH
       
       
    • =
    •  


      HI
       
       
c)
    •  


      HI
       
       
    • =
    •  


      IG
       
       
d)
    •  


      IG
       
       
    • =
    •  


      GH
       
       
e)
    •  


      IG
       
       
    •  


      GH
       
       
f)
    •  


      HI
       
       
    •  


      IG
       
       
  • (i)
    {c,a,d}
  • (ii)
    {a,d,f}
  • (iii)
    {c,d}
  • (iv)
    {e,b,f}
  • (v)
    {b,a}
Question 35
35.
Consider the following figure. State which of the following statements are true
a)
    •  


      RP
       
       
    •  


      PQ
       
       
b)
    •  


      QR
       
       
    •  


      RP
       
       
c)
    •  


      QR
       
       
    • =
    •  


      RP
       
       
d)
    •  


      PQ
       
       
    •  


      QR
       
       
e)
    •  


      RP
       
       
    • =
    •  


      PQ
       
       
f)
    •  


      PQ
       
       
    • =
    •  


      QR
       
       
  • (i)
    {e,b}
  • (ii)
    {a,b,d}
  • (iii)
    {c,a}
  • (iv)
    {f,c,d}
  • (v)
    {e,a,b}
Question 36
36.
Consider the following figure. State which of the following statements are true
a)
    • ∠B
    • ∠C
b)
    • ∠D
    • ∠B
c)
    • ∠D
    • =
    • ∠B
d)
    • ∠C
    • ∠D
e)
    • ∠B
    • =
    • ∠C
f)
    • ∠C
    • =
    • ∠D
  • (i)
    {b,e}
  • (ii)
    {b,c,e}
  • (iii)
    {d,a,f}
  • (iv)
    {c,e,f}
  • (v)
    {a,c}
Question 37
37.
Consider the following figure. State which of the following statements are true
a)
    • ∠Q
    • =
    • ∠R
b)
    • ∠P
    • =
    • ∠Q
c)
    • ∠Q
    • ∠R
d)
    • ∠R
    • =
    • ∠P
e)
    • ∠R
    • ∠P
f)
    • ∠P
    • ∠Q
  • (i)
    {a,e,f}
  • (ii)
    {c,a,e}
  • (iii)
    {b,a}
  • (iv)
    {c,e}
  • (v)
    {d,b,f}
Question 38
38.
Consider the following figure. State which of the following statements are true
a)
    • ∠D
    • ∠E
b)
    • ∠D
    • =
    • ∠E
c)
    • ∠F
    • =
    • ∠D
d)
    • ∠F
    • ∠D
e)
    • ∠E
    • =
    • ∠F
f)
    • ∠E
    • ∠F
  • (i)
    {e,b,f}
  • (ii)
    {c,d}
  • (iii)
    {b,a}
  • (iv)
    {c,a,d}
  • (v)
    {a,d,f}
    Assignment Key

  •  1) (iii)
  •  2) (iv)
  •  3) (iv)
  •  4) (i)
  •  5) (ii)
  •  6) (ii)
  •  7) (i)
  •  8) (ii)
  •  9) (i)
  •  10) (i)
  •  11) (i)
  •  12) (iii)
  •  13) (ii)
  •  14) (iii)
  •  15) (iv)
  •  16) (iv)
  •  17) (i)
  •  18) (iv)
  •  19) (ii)
  •  20) (ii)
  •  21) (i)
  •  22) (iv)
  •  23) (iii)
  •  24) (iv)
  •  25) (ii)
  •  26) (ii)
  •  27) (iii)
  •  28) (v)
  •  29) (i)
  •  30) (v)
  •  31) (i)
  •  32) (iii)
  •  33) (ii)
  •  34) (ii)
  •  35) (ii)
  •  36) (iv)
  •  37) (i)
  •  38) (v)