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)
    FG = 14 cm , GH = 11 cm , HF = 17.8 cm
  • (ii)
    FG = 14 cm , GH = 14 cm , HF = 19.8 cm
  • (iii)
    FG = 14 cm , GH = 14 cm , HF = 14 cm
  • (iv)
    FG = 10 cm , GH = 11 cm , HF = 10 cm
  • (v)
    FG = 15 cm , GH = 12 cm , HF = 11 cm
Question 2
2.
Which of the following are measures of an isosceles triangle ?
  • (i)
    MN = 15 cm , NO = 10 cm , OM = 15 cm
  • (ii)
    MN = 13 cm , NO = 15 cm , OM = 10 cm
  • (iii)
    MN = 14 cm , NO = 11 cm , OM = 13 cm
  • (iv)
    MN = 10 cm , NO = 10 cm , OM = 10 cm
  • (v)
    MN = 15 cm , NO = 10 cm , OM = 18.03 cm
Question 3
3.
Which of the following are measures of a scalene triangle ?
  • (i)
    NO = 14 cm , OP = 13 cm , PN = 15 cm
  • (ii)
    NO = 12 cm , OP = 11 cm , PN = 12 cm
  • (iii)
    NO = 10 cm , OP = 11 cm , PN = 10 cm
  • (iv)
    NO = 12 cm , OP = 12 cm , PN = 16.97 cm
  • (v)
    NO = 13 cm , OP = 13 cm , PN = 13 cm
Question 4
4.
Which of the following are measures of a right angled triangle ?
  • (i)
    EF = 15 cm , FG = 14 cm , GE = 12 cm
  • (ii)
    EF = 11 cm , FG = 11 cm , GE = 11 cm
  • (iii)
    EF = 14 cm , FG = 19 cm , GE = 10 cm
  • (iv)
    EF = 13 cm , FG = 12 cm , GE = 10 cm
  • (v)
    EF = 14 cm , FG = 15 cm , GE = 20.52 cm
Question 5
5.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    AB = 14 cm , BC = 14 cm , CA = 19.8 cm
  • (ii)
    AB = 15 cm , BC = 10 cm , CA = 14 cm
  • (iii)
    AB = 15 cm , BC = 22 cm , CA = 11 cm
  • (iv)
    AB = 11 cm , BC = 11 cm , CA = 11 cm
  • (v)
    AB = 13 cm , BC = 10 cm , CA = 11 cm
Question 6
6.
Which of the following are measures of an acute angled triangle ?
  • (i)
    NO = 11 cm , OP = 11 cm , PN = 15.56 cm
  • (ii)
    NO = 15 cm , OP = 22 cm , PN = 14 cm
  • (iii)
    NO = 11 cm , OP = 24 cm , PN = 15 cm
  • (iv)
    NO = 13 cm , OP = 15 cm , PN = 10 cm
  • (v)
    NO = 14 cm , OP = 12 cm , PN = 18.44 cm
Question 7
7.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    JK = 12 cm , KL = 13 cm , LJ = 15 cm
  • (ii)
    JK = 15 cm , KL = 15 cm , LJ = 12 cm
  • (iii)
    JK = 12 cm , KL = 19 cm , LJ = 14 cm
  • (iv)
    JK = 11 cm , KL = 15 cm , LJ = 18.6 cm
  • (v)
    JK = 13 cm , KL = 13 cm , LJ = 18.38 cm
Question 8
8.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠D = 66.74° , ∠E = 56.63° , ∠F = 56.63°
  • (ii)
    ∠D = 60° , ∠E = 60° , ∠F = 60°
  • (iii)
    ∠D = 52.62° , ∠E = 67.97° , ∠F = 59.41°
  • (iv)
    ∠D = 45° , ∠E = 90° , ∠F = 45°
  • (v)
    ∠D = 46.97° , ∠E = 90° , ∠F = 43.03°
Question 9
9.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠L = 59.41° , ∠M = 52.62° , ∠N = 67.97°
  • (ii)
    ∠L = 60° , ∠M = 60° , ∠N = 60°
  • (iii)
    ∠L = 66.74° , ∠M = 56.63° , ∠N = 56.63°
  • (iv)
    ∠L = 47.16° , ∠M = 91.04° , ∠N = 41.8°
  • (v)
    ∠L = 47.12° , ∠M = 90° , ∠N = 42.88°
Question 10
10.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠L = 45° , ∠M = 90° , ∠N = 45°
  • (ii)
    ∠L = 70.81° , ∠M = 47.91° , ∠N = 61.28°
  • (iii)
    ∠L = 46.26° , ∠M = 66.87° , ∠N = 66.87°
  • (iv)
    ∠L = 79.04° , ∠M = 50.48° , ∠N = 50.48°
  • (v)
    ∠L = 60° , ∠M = 60° , ∠N = 60°
Question 11
11.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠P = 70.81° , ∠Q = 47.91° , ∠R = 61.28°
  • (ii)
    ∠P = 106.2° , ∠Q = 35.18° , ∠R = 38.62°
  • (iii)
    ∠P = 47.73° , ∠Q = 90° , ∠R = 42.27°
  • (iv)
    ∠P = 60° , ∠Q = 60° , ∠R = 60°
  • (v)
    ∠P = 41.65° , ∠Q = 52.89° , ∠R = 85.46°
Question 12
12.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠P = 60° , ∠Q = 60° , ∠R = 60°
  • (ii)
    ∠P = 45° , ∠Q = 90° , ∠R = 45°
  • (iii)
    ∠P = 110.26° , ∠Q = 32.02° , ∠R = 37.72°
  • (iv)
    ∠P = 41.65° , ∠Q = 85.46° , ∠R = 52.89°
  • (v)
    ∠P = 73.69° , ∠Q = 63.03° , ∠R = 43.28°
Question 13
13.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠P = 45° , ∠Q = 90° , ∠R = 45°
  • (ii)
    ∠P = 52.62° , ∠Q = 59.41° , ∠R = 67.97°
  • (iii)
    ∠P = 49.09° , ∠Q = 90° , ∠R = 40.91°
  • (iv)
    ∠P = 132.72° , ∠Q = 21.55° , ∠R = 25.73°
  • (v)
    ∠P = 122.84° , ∠Q = 32.32° , ∠R = 24.84°
Question 14
14.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠N = 45° , ∠O = 90° , ∠P = 45°
  • (ii)
    ∠N = 47.12° , ∠O = 90° , ∠P = 42.88°
  • (iii)
    ∠N = 74.85° , ∠O = 55.83° , ∠P = 49.32°
  • (iv)
    ∠N = 107.5° , ∠O = 39.48° , ∠P = 33.02°
  • (v)
    ∠N = 52.02° , ∠O = 68.68° , ∠P = 59.3°
Question 15
15.
Which of the following are measures of an equilateral triangle ?
  • (i)
    PQ = 14 cm , QR = 14 cm , RP = 19.8 cm
  • (ii)
    PQ = 14 cm , QR = 14 cm , RP = 14 cm
  • (iii)
    PQ = 11 cm , QR = 14 cm , RP = 11 cm
  • (iv)
    PQ = 11 cm , QR = 15 cm , RP = 12 cm
  • (v)
    PQ = 11 cm , QR = 12 cm , RP = 16.28 cm
Question 16
16.
Which of the following are measures of an isosceles triangle ?
  • (i)
    GH = 12 cm , HI = 13 cm , IG = 11 cm
  • (ii)
    GH = 15 cm , HI = 10 cm , IG = 18.03 cm
  • (iii)
    GH = 10 cm , HI = 13 cm , IG = 10 cm
  • (iv)
    GH = 11 cm , HI = 11 cm , IG = 11 cm
  • (v)
    GH = 14 cm , HI = 15 cm , IG = 10 cm
Question 17
17.
Which of the following are measures of a scalene triangle ?
  • (i)
    BC = 13 cm , CD = 13 cm , DB = 13 cm
  • (ii)
    BC = 10 cm , CD = 14 cm , DB = 11 cm
  • (iii)
    BC = 12 cm , CD = 14 cm , DB = 12 cm
  • (iv)
    BC = 15 cm , CD = 15 cm , DB = 21.21 cm
  • (v)
    BC = 11 cm , CD = 14 cm , DB = 11 cm
Question 18
18.
Which of the following are measures of a right angled triangle ?
  • (i)
    CD = 14 cm , DE = 14 cm , EC = 14 cm
  • (ii)
    CD = 11 cm , DE = 11 cm , EC = 11 cm
  • (iii)
    CD = 15 cm , DE = 13 cm , EC = 19.85 cm
  • (iv)
    CD = 12 cm , DE = 13 cm , EC = 11 cm
  • (v)
    CD = 10 cm , DE = 18 cm , EC = 15 cm
Question 19
19.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    BC = 11 cm , CD = 21 cm , DB = 13 cm
  • (ii)
    BC = 13 cm , CD = 11 cm , DB = 14 cm
  • (iii)
    BC = 13 cm , CD = 13 cm , DB = 13 cm
  • (iv)
    BC = 10 cm , CD = 10 cm , DB = 14.14 cm
  • (v)
    BC = 11 cm , CD = 10 cm , DB = 12 cm
Question 20
20.
Which of the following are measures of an acute angled triangle ?
  • (i)
    AB = 15 cm , BC = 11 cm , CA = 15 cm
  • (ii)
    AB = 10 cm , BC = 16 cm , CA = 10 cm
  • (iii)
    AB = 11 cm , BC = 15 cm , CA = 18.6 cm
  • (iv)
    AB = 15 cm , BC = 15 cm , CA = 21.21 cm
  • (v)
    AB = 12 cm , BC = 18 cm , CA = 11 cm
Question 21
21.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    DE = 14 cm , EF = 23 cm , FD = 15 cm
  • (ii)
    DE = 13 cm , EF = 14 cm , FD = 12 cm
  • (iii)
    DE = 12 cm , EF = 11 cm , FD = 14 cm
  • (iv)
    DE = 15 cm , EF = 15 cm , FD = 21.21 cm
  • (v)
    DE = 13 cm , EF = 12 cm , FD = 17.69 cm
Question 22
22.
Which of the following are measures of an equilateral triangle ?
  • (i)
    ∠D = 47.16° , ∠E = 66.42° , ∠F = 66.42°
  • (ii)
    ∠D = 56.31° , ∠E = 90° , ∠F = 33.69°
  • (iii)
    ∠D = 60° , ∠E = 60° , ∠F = 60°
  • (iv)
    ∠D = 43.28° , ∠E = 73.69° , ∠F = 63.03°
  • (v)
    ∠D = 45° , ∠E = 90° , ∠F = 45°
Question 23
23.
Which of the following are measures of an isosceles triangle ?
  • (i)
    ∠L = 60° , ∠M = 60° , ∠N = 60°
  • (ii)
    ∠L = 50.06° , ∠M = 64.97° , ∠N = 64.97°
  • (iii)
    ∠L = 41.8° , ∠M = 91.04° , ∠N = 47.16°
  • (iv)
    ∠L = 47.49° , ∠M = 90° , ∠N = 42.51°
  • (v)
    ∠L = 64.53° , ∠M = 75.31° , ∠N = 40.16°
Question 24
24.
Which of the following are measures of a scalene triangle ?
  • (i)
    ∠L = 45° , ∠M = 90° , ∠N = 45°
  • (ii)
    ∠L = 71.38° , ∠M = 54.31° , ∠N = 54.31°
  • (iii)
    ∠L = 60° , ∠M = 60° , ∠N = 60°
  • (iv)
    ∠L = 78.46° , ∠M = 44.42° , ∠N = 57.12°
  • (v)
    ∠L = 64.78° , ∠M = 57.61° , ∠N = 57.61°
Question 25
25.
Which of the following are measures of a right angled triangle ?
  • (i)
    ∠O = 69.98° , ∠P = 61.28° , ∠Q = 48.74°
  • (ii)
    ∠O = 42.51° , ∠P = 90° , ∠Q = 47.49°
  • (iii)
    ∠O = 94.94° , ∠P = 48.35° , ∠Q = 36.71°
  • (iv)
    ∠O = 55.83° , ∠P = 49.32° , ∠Q = 74.85°
  • (v)
    ∠O = 60° , ∠P = 60° , ∠Q = 60°
Question 26
26.
Which of the following are measures of an isosceles right angled triangle ?
  • (i)
    ∠O = 57.56° , ∠P = 76.87° , ∠Q = 45.57°
  • (ii)
    ∠O = 60° , ∠P = 60° , ∠Q = 60°
  • (iii)
    ∠O = 135.59° , ∠P = 23.07° , ∠Q = 21.34°
  • (iv)
    ∠O = 76.87° , ∠P = 57.56° , ∠Q = 45.57°
  • (v)
    ∠O = 45° , ∠P = 90° , ∠Q = 45°
Question 27
27.
Which of the following are measures of an acute angled triangle ?
  • (i)
    ∠O = 132.17° , ∠P = 19.69° , ∠Q = 28.14°
  • (ii)
    ∠O = 54.46° , ∠P = 90° , ∠Q = 35.54°
  • (iii)
    ∠O = 56.25° , ∠P = 50.13° , ∠Q = 73.62°
  • (iv)
    ∠O = 45° , ∠P = 90° , ∠Q = 45°
  • (v)
    ∠O = 116.78° , ∠P = 30.3° , ∠Q = 32.92°
Question 28
28.
Which of the following are measures of an obtuse angled triangle ?
  • (i)
    ∠G = 111.8° , ∠H = 27.66° , ∠I = 40.54°
  • (ii)
    ∠G = 71.79° , ∠H = 61.26° , ∠I = 46.95°
  • (iii)
    ∠G = 45° , ∠H = 90° , ∠I = 45°
  • (iv)
    ∠G = 62.72° , ∠H = 62.72° , ∠I = 54.56°
  • (v)
    ∠G = 35.54° , ∠H = 90° , ∠I = 54.46°
Question 29
29.
Find the measures of the three sides suitable to form a triangle?
  • (i)
    HI = 20 cm , IJ = 7 cm , JH = 12 cm
  • (ii)
    HI = 5 cm , IJ = 19 cm , JH = 13 cm
  • (iii)
    HI = 6 cm , IJ = 14 cm , JH = 5 cm
  • (iv)
    HI = 10 cm , IJ = 15 cm , JH = 14 cm
  • (v)
    HI = 19 cm , IJ = 5 cm , JH = 5 cm
Question 30
30.
Find the measures of the three angles suitable to form a triangle?
  • (i)
    ∠F = 56.90° , ∠G = 101.60° , ∠H = 111.20°
  • (ii)
    ∠F = 107.80° , ∠G = 75.10° , ∠H = 112.80°
  • (iii)
    ∠F = 72.44° , ∠G = 53.78° , ∠H = 53.78°
  • (iv)
    ∠F = 46.50° , ∠G = 116.20° , ∠H = 57.70°
  • (v)
    ∠F = 118.80° , ∠G = 117.20° , ∠H = 79.30°
    Assignment Key
  •  1) (iii)
  •  2) (i)
  •  3) (i)
  •  4) (v)
  •  5) (i)
  •  6) (iv)
  •  7) (iii)
  •  8) (ii)
  •  9) (iii)
  •  10) (ii)
  •  11) (iii)
  •  12) (ii)
  •  13) (ii)
  •  14) (iv)
  •  15) (ii)
  •  16) (iii)
  •  17) (ii)
  •  18) (iii)
  •  19) (iv)
  •  20) (i)
  •  21) (i)
  •  22) (iii)
  •  23) (ii)
  •  24) (iv)
  •  25) (ii)
  •  26) (v)
  •  27) (iii)
  •  28) (i)
  •  29) (iv)
  •  30) (iii)