EduSahara™ Assignment
Name : Types of Triangles
Chapter : The Triangle and its Properties
Grade : CBSE Grade VII
License : Non Commercial Use
Question 1
1.
Which of the following are measures of an equilateral triangle ?
  • (i)
    HI = 12 cm , IJ = 14 cm , JH = 11 cm
  • (ii)
    HI = 12 cm , IJ = 13 cm , JH = 12 cm
  • (iii)
    HI = 14 cm , IJ = 15 cm , JH = 20.52 cm
  • (iv)
    HI = 12 cm , IJ = 12 cm , JH = 12 cm
  • (v)
    HI = 14 cm , IJ = 14 cm , JH = 19.8 cm
Question 2
2.
Which of the following are measures of an isosceles triangle ?
  • (i)
    DE = 14 cm , EF = 13 cm , FD = 12 cm
  • (ii)
    DE = 14 cm , EF = 15 cm , FD = 20.52 cm
  • (iii)
    DE = 12 cm , EF = 12 cm , FD = 12 cm
  • (iv)
    DE = 13 cm , EF = 11 cm , FD = 12 cm
  • (v)
    DE = 14 cm , EF = 11 cm , FD = 14 cm
Question 3
3.
Which of the following are measures of a scalene triangle ?
  • (i)
    GH = 14 cm , HI = 14 cm , IG = 14 cm
  • (ii)
    GH = 15 cm , HI = 15 cm , IG = 21.21 cm
  • (iii)
    GH = 11 cm , HI = 12 cm , IG = 11 cm
  • (iv)
    GH = 14 cm , HI = 12 cm , IG = 11 cm
  • (v)
    GH = 10 cm , HI = 15 cm , IG = 10 cm
Question 4
4.
Which of the following are measures of a right angled triangle ?
  • (i)
    NO = 10 cm , OP = 14 cm , PN = 11 cm
  • (ii)
    NO = 11 cm , OP = 12 cm , PN = 10 cm
  • (iii)
    NO = 14 cm , OP = 12 cm , PN = 18.44 cm
  • (iv)
    NO = 15 cm , OP = 22 cm , PN = 12 cm
  • (v)
    NO = 15 cm , OP = 15 cm , PN = 15 cm
Question 5
5.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    JK = 14 cm , KL = 14 cm , LJ = 19.8 cm
  • (ii)
    JK = 13 cm , KL = 20 cm , LJ = 10 cm
  • (iii)
    JK = 12 cm , KL = 15 cm , LJ = 10 cm
  • (iv)
    JK = 15 cm , KL = 15 cm , LJ = 15 cm
  • (v)
    JK = 14 cm , KL = 11 cm , LJ = 13 cm
Question 6
6.
Which of the following are measures of an acute angled triangle ?
  • (i)
    KL = 11 cm , LM = 19 cm , MK = 14 cm
  • (ii)
    KL = 10 cm , LM = 10 cm , MK = 14.14 cm
  • (iii)
    KL = 15 cm , LM = 11 cm , MK = 18.6 cm
  • (iv)
    KL = 15 cm , LM = 27 cm , MK = 14 cm
  • (v)
    KL = 12 cm , LM = 11 cm , MK = 15 cm
Question 7
7.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    HI = 15 cm , IJ = 23 cm , JH = 10 cm
  • (ii)
    HI = 14 cm , IJ = 14 cm , JH = 19.8 cm
  • (iii)
    HI = 11 cm , IJ = 15 cm , JH = 18.6 cm
  • (iv)
    HI = 10 cm , IJ = 13 cm , JH = 12 cm
  • (v)
    HI = 12 cm , IJ = 13 cm , JH = 11 cm
Question 8
8.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠B = 51.32° , ∠C = 59.17° , ∠D = 69.51°
  • (ii)
    ∠B = 45° , ∠C = 90° , ∠D = 45°
  • (iii)
    ∠B = 71.38° , ∠C = 54.31° , ∠D = 54.31°
  • (iv)
    ∠B = 38.16° , ∠C = 90° , ∠D = 51.84°
  • (v)
    ∠B = 60° , ∠C = 60° , ∠D = 60°
Question 9
9.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠F = 81.28° , ∠G = 46.46° , ∠H = 52.26°
  • (ii)
    ∠F = 69.98° , ∠G = 61.28° , ∠H = 48.74°
  • (iii)
    ∠F = 60° , ∠G = 60° , ∠H = 60°
  • (iv)
    ∠F = 42.88° , ∠G = 90° , ∠H = 47.12°
  • (v)
    ∠F = 85.98° , ∠G = 47.01° , ∠H = 47.01°
Question 10
10.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠F = 52.89° , ∠G = 85.46° , ∠H = 41.65°
  • (ii)
    ∠F = 85.98° , ∠G = 47.01° , ∠H = 47.01°
  • (iii)
    ∠F = 71.38° , ∠G = 54.31° , ∠H = 54.31°
  • (iv)
    ∠F = 45° , ∠G = 90° , ∠H = 45°
  • (v)
    ∠F = 60° , ∠G = 60° , ∠H = 60°
Question 11
11.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠L = 134.18° , ∠M = 19.19° , ∠N = 26.63°
  • (ii)
    ∠L = 47.49° , ∠M = 90° , ∠N = 42.51°
  • (iii)
    ∠L = 57.12° , ∠M = 78.46° , ∠N = 44.42°
  • (iv)
    ∠L = 60° , ∠M = 60° , ∠N = 60°
  • (v)
    ∠L = 67.38° , ∠M = 45.24° , ∠N = 67.38°
Question 12
12.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠A = 109.47° , ∠B = 38.94° , ∠C = 31.59°
  • (ii)
    ∠A = 45° , ∠B = 90° , ∠C = 45°
  • (iii)
    ∠A = 67.38° , ∠B = 67.38° , ∠C = 45.24°
  • (iv)
    ∠A = 60° , ∠B = 60° , ∠C = 60°
  • (v)
    ∠A = 50.13° , ∠B = 56.25° , ∠C = 73.62°
Question 13
13.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠P = 33.69° , ∠Q = 90° , ∠R = 56.31°
  • (ii)
    ∠P = 112.62° , ∠Q = 36.87° , ∠R = 30.51°
  • (iii)
    ∠P = 45° , ∠Q = 90° , ∠R = 45°
  • (iv)
    ∠P = 96.92° , ∠Q = 45.16° , ∠R = 37.92°
  • (v)
    ∠P = 61.26° , ∠Q = 46.95° , ∠R = 71.79°
Question 14
14.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠F = 41.08° , ∠G = 80.25° , ∠H = 58.67°
  • (ii)
    ∠F = 106.2° , ∠G = 38.62° , ∠H = 35.18°
  • (iii)
    ∠F = 45.21° , ∠G = 83.47° , ∠H = 51.32°
  • (iv)
    ∠F = 53.75° , ∠G = 90° , ∠H = 36.25°
  • (v)
    ∠F = 45° , ∠G = 90° , ∠H = 45°
Question 15
15.
Which of the following are measures of an equilateral triangle ?
  • (i)
    DE = 12 cm , EF = 12 cm , FD = 16.97 cm
  • (ii)
    DE = 15 cm , EF = 12 cm , FD = 15 cm
  • (iii)
    DE = 15 cm , EF = 12 cm , FD = 10 cm
  • (iv)
    DE = 11 cm , EF = 14 cm , FD = 17.8 cm
  • (v)
    DE = 12 cm , EF = 12 cm , FD = 12 cm
Question 16
16.
Which of the following are measures of an isosceles triangle ?
  • (i)
    AB = 12 cm , BC = 15 cm , CA = 19.21 cm
  • (ii)
    AB = 15 cm , BC = 15 cm , CA = 15 cm
  • (iii)
    AB = 15 cm , BC = 10 cm , CA = 12 cm
  • (iv)
    AB = 13 cm , BC = 15 cm , CA = 10 cm
  • (v)
    AB = 10 cm , BC = 15 cm , CA = 10 cm
Question 17
17.
Which of the following are measures of a scalene triangle ?
  • (i)
    CD = 10 cm , DE = 12 cm , EC = 11 cm
  • (ii)
    CD = 13 cm , DE = 13 cm , EC = 13 cm
  • (iii)
    CD = 10 cm , DE = 10 cm , EC = 14.14 cm
  • (iv)
    CD = 11 cm , DE = 12 cm , EC = 11 cm
  • (v)
    CD = 12 cm , DE = 13 cm , EC = 12 cm
Question 18
18.
Which of the following are measures of a right angled triangle ?
  • (i)
    NO = 11 cm , OP = 15 cm , PN = 13 cm
  • (ii)
    NO = 15 cm , OP = 15 cm , PN = 15 cm
  • (iii)
    NO = 11 cm , OP = 21 cm , PN = 13 cm
  • (iv)
    NO = 13 cm , OP = 14 cm , PN = 19.1 cm
  • (v)
    NO = 11 cm , OP = 12 cm , PN = 15 cm
Question 19
19.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    BC = 13 cm , CD = 12 cm , DB = 15 cm
  • (ii)
    BC = 12 cm , CD = 12 cm , DB = 16.97 cm
  • (iii)
    BC = 10 cm , CD = 13 cm , DB = 11 cm
  • (iv)
    BC = 15 cm , CD = 23 cm , DB = 15 cm
  • (v)
    BC = 12 cm , CD = 12 cm , DB = 12 cm
Question 20
20.
Which of the following are measures of an acute angled triangle ?
  • (i)
    BC = 13 cm , CD = 24 cm , DB = 15 cm
  • (ii)
    BC = 12 cm , CD = 11 cm , DB = 16.28 cm
  • (iii)
    BC = 11 cm , CD = 11 cm , DB = 15.56 cm
  • (iv)
    BC = 13 cm , CD = 20 cm , DB = 13 cm
  • (v)
    BC = 10 cm , CD = 12 cm , DB = 14 cm
Question 21
21.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    HI = 14 cm , IJ = 10 cm , JH = 12 cm
  • (ii)
    HI = 12 cm , IJ = 19 cm , JH = 12 cm
  • (iii)
    HI = 12 cm , IJ = 12 cm , JH = 16.97 cm
  • (iv)
    HI = 14 cm , IJ = 10 cm , JH = 17.2 cm
  • (v)
    HI = 11 cm , IJ = 10 cm , JH = 12 cm
Question 22
22.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠K = 55.3° , ∠L = 48.37° , ∠M = 76.33°
  • (ii)
    ∠K = 51.84° , ∠L = 90° , ∠M = 38.16°
  • (iii)
    ∠K = 50.06° , ∠L = 64.97° , ∠M = 64.97°
  • (iv)
    ∠K = 45° , ∠L = 90° , ∠M = 45°
  • (v)
    ∠K = 60° , ∠L = 60° , ∠M = 60°
Question 23
23.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠P = 46.97° , ∠Q = 90° , ∠R = 43.03°
  • (ii)
    ∠P = 66.74° , ∠Q = 56.63° , ∠R = 56.63°
  • (iii)
    ∠P = 60° , ∠Q = 60° , ∠R = 60°
  • (iv)
    ∠P = 55.3° , ∠Q = 48.37° , ∠R = 76.33°
  • (v)
    ∠P = 50.13° , ∠Q = 56.25° , ∠R = 73.62°
Question 24
24.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠P = 46.26° , ∠Q = 66.87° , ∠R = 66.87°
  • (ii)
    ∠P = 60° , ∠Q = 60° , ∠R = 60°
  • (iii)
    ∠P = 44.42° , ∠Q = 62.96° , ∠R = 72.62°
  • (iv)
    ∠P = 73.74° , ∠Q = 53.13° , ∠R = 53.13°
  • (v)
    ∠P = 45° , ∠Q = 90° , ∠R = 45°
Question 25
25.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠A = 60° , ∠B = 60° , ∠C = 60°
  • (ii)
    ∠A = 81.28° , ∠B = 52.26° , ∠C = 46.46°
  • (iii)
    ∠A = 41.65° , ∠B = 52.89° , ∠C = 85.46°
  • (iv)
    ∠A = 42.88° , ∠B = 90° , ∠C = 47.12°
  • (v)
    ∠A = 116.39° , ∠B = 35.75° , ∠C = 27.86°
Question 26
26.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠M = 103.34° , ∠N = 35.1° , ∠O = 41.56°
  • (ii)
    ∠M = 59.41° , ∠N = 52.62° , ∠O = 67.97°
  • (iii)
    ∠M = 67.97° , ∠N = 52.62° , ∠O = 59.41°
  • (iv)
    ∠M = 45° , ∠N = 90° , ∠O = 45°
  • (v)
    ∠M = 60° , ∠N = 60° , ∠O = 60°
Question 27
27.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠M = 131.81° , ∠N = 22.98° , ∠O = 25.21°
  • (ii)
    ∠M = 110.26° , ∠N = 32.02° , ∠O = 37.72°
  • (iii)
    ∠M = 45° , ∠N = 90° , ∠O = 45°
  • (iv)
    ∠M = 54.46° , ∠N = 90° , ∠O = 35.54°
  • (v)
    ∠M = 64.63° , ∠N = 64.62° , ∠O = 50.75°
Question 28
28.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠B = 47.29° , ∠C = 90° , ∠D = 42.71°
  • (ii)
    ∠B = 85.98° , ∠C = 47.01° , ∠D = 47.01°
  • (iii)
    ∠B = 66.87° , ∠C = 66.87° , ∠D = 46.26°
  • (iv)
    ∠B = 98.63° , ∠C = 42.38° , ∠D = 38.99°
  • (v)
    ∠B = 45° , ∠C = 90° , ∠D = 45°
Question 29
29.
Find the measures of the three sides suitable to form a triangle?
  • (i)
    CD = 12 cm , DE = 12 cm , EC = 10 cm
  • (ii)
    CD = 6 cm , DE = 18 cm , EC = 10 cm
  • (iii)
    CD = 10 cm , DE = 5 cm , EC = 17 cm
  • (iv)
    CD = 19 cm , DE = 8 cm , EC = 7 cm
  • (v)
    CD = 7 cm , DE = 14 cm , EC = 5 cm
Question 30
30.
Find the measures of the three angles suitable to form a triangle?
  • (i)
    ∠L = 42.70° , ∠M = 113.70° , ∠N = 107.30°
  • (ii)
    ∠L = 58.90° , ∠M = 111.50° , ∠N = 59.40°
  • (iii)
    ∠L = 47.16° , ∠M = 41.8° , ∠N = 91.04°
  • (iv)
    ∠L = 47.70° , ∠M = 65.10° , ∠N = 45.80°
  • (v)
    ∠L = 62.10° , ∠M = 36.10° , ∠N = 52.60°
    Assignment Key
  •  1) (iv)
  •  2) (v)
  •  3) (iv)
  •  4) (iii)
  •  5) (i)
  •  6) (v)
  •  7) (i)
  •  8) (v)
  •  9) (v)
  •  10) (i)
  •  11) (ii)
  •  12) (ii)
  •  13) (v)
  •  14) (ii)
  •  15) (v)
  •  16) (v)
  •  17) (i)
  •  18) (iv)
  •  19) (ii)
  •  20) (v)
  •  21) (ii)
  •  22) (v)
  •  23) (ii)
  •  24) (iii)
  •  25) (iv)
  •  26) (iv)
  •  27) (v)
  •  28) (iv)
  •  29) (i)
  •  30) (iii)