EduSahara™ Assignment
Name : Types of Triangles
Chapter : Understanding Elementary Shapes
Grade : CBSE Grade VI
License : Non Commercial Use
Question 1
1.
Consider the following figure. State which of the following statements are true
a)
    •  


      IJ
       
       
    •  


      JH
       
       
b)
    •  


      JH
       
       
    • =
    •  


      HI
       
       
c)
    •  


      HI
       
       
    • =
    •  


      IJ
       
       
d)
    •  


      HI
       
       
    •  


      IJ
       
       
e)
    •  


      JH
       
       
    •  


      HI
       
       
f)
    •  


      IJ
       
       
    • =
    •  


      JH
       
       
  • (i)
    {a,b}
  • (ii)
    {d,c}
  • (iii)
    {e,a,f}
  • (iv)
    {d,b,c}
  • (v)
    {b,c,f}
Question 2
2.
Consider the following figure. State which of the following statements are true
a)
    •  


      AB
       
       
    • =
    •  


      BC
       
       
b)
    •  


      BC
       
       
    •  


      CA
       
       
c)
    •  


      BC
       
       
    • =
    •  


      CA
       
       
d)
    •  


      CA
       
       
    •  


      AB
       
       
e)
    •  


      CA
       
       
    • =
    •  


      AB
       
       
f)
    •  


      AB
       
       
    •  


      BC
       
       
  • (i)
    {d,a,f}
  • (ii)
    {c,e}
  • (iii)
    {c,b,e}
  • (iv)
    {b,e,f}
  • (v)
    {a,b}
Question 3
3.
Consider the following figure. State which of the following statements are true
a)
    •  


      FD
       
       
    •  


      DE
       
       
b)
    •  


      DE
       
       
    • =
    •  


      EF
       
       
c)
    •  


      EF
       
       
    •  


      FD
       
       
d)
    •  


      FD
       
       
    • =
    •  


      DE
       
       
e)
    •  


      EF
       
       
    • =
    •  


      FD
       
       
f)
    •  


      DE
       
       
    •  


      EF
       
       
  • (i)
    {b,a}
  • (ii)
    {d,c}
  • (iii)
    {d,a,c}
  • (iv)
    {e,b,f}
  • (v)
    {a,c,f}
Question 4
4.
Consider the following figure. State which of the following statements are true
a)
    • ∠F
    • ∠D
b)
    • ∠D
    • =
    • ∠E
c)
    • ∠E
    • =
    • ∠F
d)
    • ∠D
    • ∠E
e)
    • ∠F
    • =
    • ∠D
f)
    • ∠E
    • ∠F
  • (i)
    {d,c}
  • (ii)
    {f,a,e}
  • (iii)
    {a,b}
  • (iv)
    {d,b,c}
  • (v)
    {b,c,e}
Question 5
5.
Consider the following figure. State which of the following statements are true
a)
    • ∠M
    • ∠N
b)
    • ∠M
    • =
    • ∠N
c)
    • ∠N
    • =
    • ∠L
d)
    • ∠L
    • =
    • ∠M
e)
    • ∠N
    • ∠L
f)
    • ∠L
    • ∠M
  • (i)
    {a,b}
  • (ii)
    {d,a,f}
  • (iii)
    {c,e}
  • (iv)
    {b,e,f}
  • (v)
    {c,b,e}
Question 6
6.
Consider the following figure. State which of the following statements are true
a)
    • ∠F
    • =
    • ∠G
b)
    • ∠G
    • ∠E
c)
    • ∠G
    • =
    • ∠E
d)
    • ∠E
    • ∠F
e)
    • ∠E
    • =
    • ∠F
f)
    • ∠F
    • ∠G
  • (i)
    {c,d}
  • (ii)
    {a,b}
  • (iii)
    {b,d,f}
  • (iv)
    {e,a,f}
  • (v)
    {c,b,d}
Question 7
7.
Which of the following are measures of an equilateral triangle ?
  • (i)
    NO = 13 cm , OP = 10 cm , PN = 13 cm
  • (ii)
    NO = 12 cm , OP = 12 cm , PN = 16.97 cm
  • (iii)
    NO = 13 cm , OP = 12 cm , PN = 17.69 cm
  • (iv)
    NO = 10 cm , OP = 15 cm , PN = 13 cm
  • (v)
    NO = 14 cm , OP = 14 cm , PN = 14 cm
Question 8
8.
Which of the following are measures of an isosceles triangle ?
  • (i)
    BC = 12 cm , CD = 15 cm , DB = 12 cm
  • (ii)
    BC = 13 cm , CD = 10 cm , DB = 14 cm
  • (iii)
    BC = 15 cm , CD = 10 cm , DB = 18.03 cm
  • (iv)
    BC = 10 cm , CD = 10 cm , DB = 10 cm
  • (v)
    BC = 14 cm , CD = 13 cm , DB = 10 cm
Question 9
9.
Which of the following are measures of a scalene triangle ?
  • (i)
    DE = 10 cm , EF = 15 cm , FD = 10 cm
  • (ii)
    DE = 10 cm , EF = 10 cm , FD = 14.14 cm
  • (iii)
    DE = 14 cm , EF = 11 cm , FD = 14 cm
  • (iv)
    DE = 11 cm , EF = 14 cm , FD = 13 cm
  • (v)
    DE = 10 cm , EF = 10 cm , FD = 10 cm
Question 10
10.
Which of the following are measures of a right angled triangle ?
  • (i)
    BC = 12 cm , CD = 14 cm , DB = 13 cm
  • (ii)
    BC = 14 cm , CD = 14 cm , DB = 14 cm
  • (iii)
    BC = 11 cm , CD = 11 cm , DB = 10 cm
  • (iv)
    BC = 10 cm , CD = 20 cm , DB = 14 cm
  • (v)
    BC = 14 cm , CD = 13 cm , DB = 19.1 cm
Question 11
11.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    JK = 15 cm , KL = 15 cm , LJ = 21.21 cm
  • (ii)
    JK = 12 cm , KL = 19 cm , LJ = 13 cm
  • (iii)
    JK = 15 cm , KL = 15 cm , LJ = 15 cm
  • (iv)
    JK = 13 cm , KL = 10 cm , LJ = 15 cm
  • (v)
    JK = 11 cm , KL = 10 cm , LJ = 13 cm
Question 12
12.
Which of the following are measures of an acute angled triangle ?
  • (i)
    CD = 14 cm , DE = 14 cm , EC = 19.8 cm
  • (ii)
    CD = 10 cm , DE = 12 cm , EC = 15.62 cm
  • (iii)
    CD = 10 cm , DE = 16 cm , EC = 12 cm
  • (iv)
    CD = 11 cm , DE = 10 cm , EC = 12 cm
  • (v)
    CD = 12 cm , DE = 23 cm , EC = 13 cm
Question 13
13.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    HI = 14 cm , IJ = 11 cm , JH = 12 cm
  • (ii)
    HI = 14 cm , IJ = 12 cm , JH = 18.44 cm
  • (iii)
    HI = 15 cm , IJ = 11 cm , JH = 13 cm
  • (iv)
    HI = 13 cm , IJ = 19 cm , JH = 11 cm
  • (v)
    HI = 13 cm , IJ = 13 cm , JH = 18.38 cm
Question 14
14.
Which of the following are measures of an equilateral triangle ?
  • (i)
    FG = 11 cm , GH = 11 cm , HF = 11 cm
  • (ii)
    FG = 14 cm , GH = 15 cm , HF = 20.52 cm
  • (iii)
    FG = 10 cm , GH = 12 cm , HF = 13 cm
  • (iv)
    FG = 13 cm , GH = 13 cm , HF = 18.38 cm
  • (v)
    FG = 14 cm , GH = 15 cm , HF = 14 cm
Question 15
15.
Which of the following are measures of an isosceles triangle ?
  • (i)
    DE = 13 cm , EF = 10 cm , FD = 13 cm
  • (ii)
    DE = 13 cm , EF = 14 cm , FD = 19.1 cm
  • (iii)
    DE = 14 cm , EF = 15 cm , FD = 13 cm
  • (iv)
    DE = 14 cm , EF = 14 cm , FD = 14 cm
  • (v)
    DE = 14 cm , EF = 13 cm , FD = 10 cm
Question 16
16.
Which of the following are measures of a scalene triangle ?
  • (i)
    BC = 12 cm , CD = 15 cm , DB = 12 cm
  • (ii)
    BC = 15 cm , CD = 15 cm , DB = 15 cm
  • (iii)
    BC = 12 cm , CD = 12 cm , DB = 16.97 cm
  • (iv)
    BC = 12 cm , CD = 11 cm , DB = 14 cm
  • (v)
    BC = 10 cm , CD = 12 cm , DB = 10 cm
Question 17
17.
Which of the following are measures of a right angled triangle ?
  • (i)
    HI = 10 cm , IJ = 13 cm , JH = 16.4 cm
  • (ii)
    HI = 14 cm , IJ = 15 cm , JH = 10 cm
  • (iii)
    HI = 10 cm , IJ = 15 cm , JH = 13 cm
  • (iv)
    HI = 15 cm , IJ = 23 cm , JH = 11 cm
  • (v)
    HI = 10 cm , IJ = 10 cm , JH = 10 cm
Question 18
18.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    OP = 13 cm , PQ = 11 cm , QO = 14 cm
  • (ii)
    OP = 11 cm , PQ = 22 cm , QO = 14 cm
  • (iii)
    OP = 13 cm , PQ = 13 cm , QO = 13 cm
  • (iv)
    OP = 14 cm , PQ = 12 cm , QO = 11 cm
  • (v)
    OP = 12 cm , PQ = 12 cm , QO = 16.97 cm
Question 19
19.
Which of the following are measures of an acute angled triangle ?
  • (i)
    PQ = 13 cm , QR = 12 cm , RP = 17.69 cm
  • (ii)
    PQ = 15 cm , QR = 23 cm , RP = 15 cm
  • (iii)
    PQ = 11 cm , QR = 22 cm , RP = 15 cm
  • (iv)
    PQ = 14 cm , QR = 14 cm , RP = 13 cm
  • (v)
    PQ = 14 cm , QR = 14 cm , RP = 19.8 cm
Question 20
20.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    OP = 12 cm , PQ = 11 cm , QO = 15 cm
  • (ii)
    OP = 11 cm , PQ = 12 cm , QO = 12 cm
  • (iii)
    OP = 10 cm , PQ = 11 cm , QO = 14.87 cm
  • (iv)
    OP = 14 cm , PQ = 23 cm , QO = 15 cm
  • (v)
    OP = 12 cm , PQ = 12 cm , QO = 16.97 cm
Question 21
21.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠M = 60° , ∠N = 60° , ∠O = 60°
  • (ii)
    ∠M = 66.74° , ∠N = 56.63° , ∠O = 56.63°
  • (iii)
    ∠M = 45° , ∠N = 90° , ∠O = 45°
  • (iv)
    ∠M = 51.32° , ∠N = 45.21° , ∠O = 83.47°
  • (v)
    ∠M = 33.69° , ∠N = 90° , ∠O = 56.31°
Question 22
22.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠C = 44.42° , ∠D = 62.96° , ∠E = 72.62°
  • (ii)
    ∠C = 60° , ∠D = 60° , ∠E = 60°
  • (iii)
    ∠C = 88.86° , ∠D = 45.57° , ∠E = 45.57°
  • (iv)
    ∠C = 49.76° , ∠D = 90° , ∠E = 40.24°
  • (v)
    ∠C = 55.3° , ∠D = 76.33° , ∠E = 48.37°
Question 23
23.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠B = 60° , ∠C = 60° , ∠D = 60°
  • (ii)
    ∠B = 54.56° , ∠C = 62.72° , ∠D = 62.72°
  • (iii)
    ∠B = 45° , ∠C = 90° , ∠D = 45°
  • (iv)
    ∠B = 57.56° , ∠C = 76.87° , ∠D = 45.57°
  • (v)
    ∠B = 88.86° , ∠C = 45.57° , ∠D = 45.57°
Question 24
24.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠H = 44.42° , ∠I = 57.12° , ∠J = 78.46°
  • (ii)
    ∠H = 60° , ∠I = 60° , ∠J = 60°
  • (iii)
    ∠H = 70.81° , ∠I = 47.91° , ∠J = 61.28°
  • (iv)
    ∠H = 137.92° , ∠I = 21.04° , ∠J = 21.04°
  • (v)
    ∠H = 49.76° , ∠I = 90° , ∠J = 40.24°
Question 25
25.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠E = 45.57° , ∠F = 76.87° , ∠G = 57.56°
  • (ii)
    ∠E = 66.87° , ∠F = 46.26° , ∠G = 66.87°
  • (iii)
    ∠E = 113.74° , ∠F = 37.61° , ∠G = 28.65°
  • (iv)
    ∠E = 60° , ∠F = 60° , ∠G = 60°
  • (v)
    ∠E = 45° , ∠F = 90° , ∠G = 45°
Question 26
26.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠H = 113.74° , ∠I = 28.65° , ∠J = 37.61°
  • (ii)
    ∠H = 56.31° , ∠I = 90° , ∠J = 33.69°
  • (iii)
    ∠H = 45° , ∠I = 90° , ∠J = 45°
  • (iv)
    ∠H = 119.17° , ∠I = 27.36° , ∠J = 33.47°
  • (v)
    ∠H = 49.46° , ∠I = 81.08° , ∠J = 49.46°
Question 27
27.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠F = 36.25° , ∠G = 90° , ∠H = 53.75°
  • (ii)
    ∠F = 52.02° , ∠G = 68.68° , ∠H = 59.3°
  • (iii)
    ∠F = 135.33° , ∠G = 24.95° , ∠H = 19.72°
  • (iv)
    ∠F = 57.61° , ∠G = 57.61° , ∠H = 64.78°
  • (v)
    ∠F = 45° , ∠G = 90° , ∠H = 45°
Question 28
28.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠P = 40.16° , ∠Q = 64.53° , ∠R = 75.31°
  • (ii)
    ∠P = 60° , ∠Q = 60° , ∠R = 60°
  • (iii)
    ∠P = 45° , ∠Q = 90° , ∠R = 45°
  • (iv)
    ∠P = 39.81° , ∠Q = 90° , ∠R = 50.19°
  • (v)
    ∠P = 72.44° , ∠Q = 53.78° , ∠R = 53.78°
Question 29
29.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠L = 71.38° , ∠M = 54.31° , ∠N = 54.31°
  • (ii)
    ∠L = 59.41° , ∠M = 52.62° , ∠N = 67.97°
  • (iii)
    ∠L = 47.73° , ∠M = 90° , ∠N = 42.27°
  • (iv)
    ∠L = 60° , ∠M = 60° , ∠N = 60°
  • (v)
    ∠L = 41.8° , ∠M = 91.04° , ∠N = 47.16°
Question 30
30.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠H = 45° , ∠I = 90° , ∠J = 45°
  • (ii)
    ∠H = 73.62° , ∠I = 56.25° , ∠J = 50.13°
  • (iii)
    ∠H = 65.16° , ∠I = 57.42° , ∠J = 57.42°
  • (iv)
    ∠H = 47.16° , ∠I = 66.42° , ∠J = 66.42°
  • (v)
    ∠H = 60° , ∠I = 60° , ∠J = 60°
Question 31
31.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠H = 40.6° , ∠I = 90° , ∠J = 49.4°
  • (ii)
    ∠H = 44.42° , ∠I = 57.12° , ∠J = 78.46°
  • (iii)
    ∠H = 121.19° , ∠I = 24.04° , ∠J = 34.77°
  • (iv)
    ∠H = 51.32° , ∠I = 59.17° , ∠J = 69.51°
  • (v)
    ∠H = 60° , ∠I = 60° , ∠J = 60°
Question 32
32.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠I = 67.97° , ∠J = 59.41° , ∠K = 52.62°
  • (ii)
    ∠I = 60° , ∠J = 60° , ∠K = 60°
  • (iii)
    ∠I = 45° , ∠J = 90° , ∠K = 45°
  • (iv)
    ∠I = 69.98° , ∠J = 61.28° , ∠K = 48.74°
  • (v)
    ∠I = 109.47° , ∠J = 38.94° , ∠K = 31.59°
Question 33
33.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠O = 54.46° , ∠P = 90° , ∠Q = 35.54°
  • (ii)
    ∠O = 45° , ∠P = 90° , ∠Q = 45°
  • (iii)
    ∠O = 96.89° , ∠P = 31.5° , ∠Q = 51.61°
  • (iv)
    ∠O = 111.32° , ∠P = 32.64° , ∠Q = 36.04°
  • (v)
    ∠O = 76.87° , ∠P = 45.57° , ∠Q = 57.56°
Question 34
34.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠J = 64.32° , ∠K = 51.36° , ∠L = 64.32°
  • (ii)
    ∠J = 113.74° , ∠K = 28.65° , ∠L = 37.61°
  • (iii)
    ∠J = 38.66° , ∠K = 90° , ∠L = 51.34°
  • (iv)
    ∠J = 57.56° , ∠K = 76.87° , ∠L = 45.57°
  • (v)
    ∠J = 45° , ∠K = 90° , ∠L = 45°
Question 35
35.
Find the measures of the three sides suitable to form a triangle?
  • (i)
    PQ = 6 cm , QR = 8 cm , RP = 18 cm
  • (ii)
    PQ = 19 cm , QR = 12 cm , RP = 5 cm
  • (iii)
    PQ = 14 cm , QR = 12 cm , RP = 12 cm
  • (iv)
    PQ = 17 cm , QR = 5 cm , RP = 11 cm
  • (v)
    PQ = 19 cm , QR = 7 cm , RP = 11 cm
Question 36
36.
Find the measures of the three angles suitable to form a triangle?
  • (i)
    ∠O = 51.32° , ∠P = 59.17° , ∠Q = 69.51°
  • (ii)
    ∠O = 101.10° , ∠P = 45.20° , ∠Q = 39.80°
  • (iii)
    ∠O = 79.20° , ∠P = 62.50° , ∠Q = 86.70°
  • (iv)
    ∠O = 58.70° , ∠P = 79.10° , ∠Q = 116.10°
  • (v)
    ∠O = 57.90° , ∠P = 30.30° , ∠Q = 117.40°
    Assignment Key

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