EduSahara™ Worksheet

Question 1

1.

Which of the following are measures of an equilateral triangle ?

(i)

DE = 11 cm , EF = 11 cm , FD = 11 cm
(ii)

DE = 10 cm , EF = 11 cm , FD = 10 cm
(iii)

DE = 13 cm , EF = 13 cm , FD = 18.38 cm
(iv)

DE = 12 cm , EF = 14 cm , FD = 13 cm
(v)

DE = 14 cm , EF = 11 cm , FD = 17.8 cm

Question 2

2.

Which of the following are measures of an isosceles triangle ?

(i)

KL = 13 cm , LM = 13 cm , MK = 13 cm
(ii)

KL = 12 cm , LM = 13 cm , MK = 12 cm
(iii)

KL = 12 cm , LM = 15 cm , MK = 10 cm
(iv)

KL = 12 cm , LM = 14 cm , MK = 13 cm
(v)

KL = 14 cm , LM = 10 cm , MK = 17.2 cm

Question 3

3.

Which of the following are measures of a scalene triangle ?

(i)

IJ = 13 cm , JK = 15 cm , KI = 13 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 = 13 cm , JK = 15 cm , KI = 12 cm

Question 4

4.

Which of the following are measures of a right angled triangle ?

(i)

NO = 11 cm , OP = 14 cm , PN = 10 cm
(ii)

NO = 14 cm , OP = 13 cm , PN = 19.1 cm
(iii)

NO = 13 cm , OP = 21 cm , PN = 12 cm
(iv)

NO = 11 cm , OP = 11 cm , PN = 11 cm
(v)

NO = 15 cm , OP = 12 cm , PN = 11 cm

Question 5

5.

Which of the following are measures of an isosceles right angled triangle ?

(i)

JK = 13 cm , KL = 23 cm , LJ = 14 cm
(ii)

JK = 11 cm , KL = 11 cm , LJ = 11 cm
(iii)

JK = 15 cm , KL = 15 cm , LJ = 21.21 cm
(iv)

JK = 10 cm , KL = 12 cm , LJ = 11 cm
(v)

JK = 14 cm , KL = 13 cm , LJ = 13 cm

Question 6

6.

Which of the following are measures of an acute angled triangle ?

(i)

KL = 14 cm , LM = 15 cm , MK = 12 cm
(ii)

KL = 13 cm , LM = 14 cm , MK = 19.1 cm
(iii)

KL = 10 cm , LM = 18 cm , MK = 11 cm
(iv)

KL = 14 cm , LM = 19 cm , MK = 10 cm
(v)

KL = 11 cm , LM = 11 cm , MK = 15.56 cm

Question 7

7.

Which of the following are measures of an obtuse angled triangle ?

(i)

CD = 13 cm , DE = 13 cm , EC = 18.38 cm
(ii)

CD = 12 cm , DE = 15 cm , EC = 10 cm
(iii)

CD = 13 cm , DE = 15 cm , EC = 19.85 cm
(iv)

CD = 14 cm , DE = 24 cm , EC = 13 cm
(v)

CD = 14 cm , DE = 14 cm , EC = 15 cm

Question 8

8.

Which of the following are measures of an equilateral triangle ?

(i)

DE = 13 cm , EF = 11 cm , FD = 17.03 cm
(ii)

DE = 13 cm , EF = 11 cm , FD = 15 cm
(iii)

DE = 10 cm , EF = 10 cm , FD = 10 cm
(iv)

DE = 12 cm , EF = 12 cm , FD = 16.97 cm
(v)

DE = 10 cm , EF = 11 cm , FD = 10 cm

Question 9

9.

Which of the following are measures of an isosceles triangle ?

(i)

JK = 12 cm , KL = 14 cm , LJ = 18.44 cm
(ii)

JK = 13 cm , KL = 10 cm , LJ = 11 cm
(iii)

JK = 12 cm , KL = 11 cm , LJ = 10 cm
(iv)

JK = 10 cm , KL = 14 cm , LJ = 10 cm
(v)

JK = 14 cm , KL = 14 cm , LJ = 14 cm

Question 10

10.

Which of the following are measures of a scalene triangle ?

(i)

BC = 12 cm , CD = 13 cm , DB = 12 cm
(ii)

BC = 11 cm , CD = 11 cm , DB = 15.56 cm
(iii)

BC = 11 cm , CD = 15 cm , DB = 11 cm
(iv)

BC = 12 cm , CD = 11 cm , DB = 15 cm
(v)

BC = 10 cm , CD = 10 cm , DB = 10 cm

Question 11

11.

Which of the following are measures of a right angled triangle ?

(i)

AB = 15 cm , BC = 15 cm , CA = 15 cm
(ii)

AB = 12 cm , BC = 13 cm , CA = 13 cm
(iii)

AB = 15 cm , BC = 13 cm , CA = 19.85 cm
(iv)

AB = 10 cm , BC = 13 cm , CA = 12 cm
(v)

AB = 14 cm , BC = 25 cm , CA = 13 cm

Question 12

12.

Which of the following are measures of an isosceles right angled triangle ?

(i)

GH = 13 cm , HI = 14 cm , IG = 13 cm
(ii)

GH = 10 cm , HI = 10 cm , IG = 10 cm
(iii)

GH = 13 cm , HI = 13 cm , IG = 18.38 cm
(iv)

GH = 12 cm , HI = 17 cm , IG = 10 cm
(v)

GH = 15 cm , HI = 11 cm , IG = 12 cm

Question 13

13.

Which of the following are measures of an acute angled triangle ?

(i)

JK = 14 cm , KL = 21 cm , LJ = 11 cm
(ii)

JK = 10 cm , KL = 15 cm , LJ = 18.03 cm
(iii)

JK = 10 cm , KL = 11 cm , LJ = 12 cm
(iv)

JK = 15 cm , KL = 21 cm , LJ = 12 cm
(v)

JK = 12 cm , KL = 12 cm , LJ = 16.97 cm

Question 14

14.

Which of the following are measures of an obtuse angled triangle ?

(i)

HI = 13 cm , IJ = 11 cm , JH = 17.03 cm
(ii)

HI = 13 cm , IJ = 13 cm , JH = 18.38 cm
(iii)

HI = 15 cm , IJ = 21 cm , JH = 14 cm
(iv)

HI = 14 cm , IJ = 11 cm , JH = 14 cm
(v)

HI = 15 cm , IJ = 11 cm , JH = 11 cm

Question 15

15.

Which of the following are measures of an equilateral triangle ?

(i)

∠J = 60° , ∠K = 60° , ∠L = 60°
(ii)

∠J = 45° , ∠K = 90° , ∠L = 45°
(iii)

∠J = 39.81° , ∠K = 90° , ∠L = 50.19°
(iv)

∠J = 58.67° , ∠K = 41.08° , ∠L = 80.25°
(v)

∠J = 73.74° , ∠K = 53.13° , ∠L = 53.13°

Question 16

16.

Which of the following are measures of an isosceles triangle ?

(i)

∠D = 60° , ∠E = 60° , ∠F = 60°
(ii)

∠D = 47.49° , ∠E = 90° , ∠F = 42.51°
(iii)

∠D = 45.57° , ∠E = 76.87° , ∠F = 57.56°
(iv)

∠D = 54.56° , ∠E = 62.72° , ∠F = 62.72°
(v)

∠D = 41.08° , ∠E = 80.25° , ∠F = 58.67°

Question 17

17.

Which of the following are measures of a scalene triangle ?

(i)

∠J = 45.24° , ∠K = 67.38° , ∠L = 67.38°
(ii)

∠J = 45° , ∠K = 90° , ∠L = 45°
(iii)

∠J = 77.36° , ∠K = 51.32° , ∠L = 51.32°
(iv)

∠J = 52.26° , ∠K = 81.28° , ∠L = 46.46°
(v)

∠J = 60° , ∠K = 60° , ∠L = 60°

Question 18

18.

Which of the following are measures of a right angled triangle ?

(i)

∠K = 36.25° , ∠L = 90° , ∠M = 53.75°
(ii)

∠K = 116.42° , ∠L = 31.79° , ∠M = 31.79°
(iii)

∠K = 70.46° , ∠L = 54.77° , ∠M = 54.77°
(iv)

∠K = 59.3° , ∠L = 68.68° , ∠M = 52.02°
(v)

∠K = 60° , ∠L = 60° , ∠M = 60°

Question 19

19.

Which of the following are measures of an isosceles right angled triangle ?

(i)

∠D = 125.1° , ∠E = 24.15° , ∠F = 30.75°
(ii)

∠D = 85.98° , ∠E = 47.01° , ∠F = 47.01°
(iii)

∠D = 45° , ∠E = 90° , ∠F = 45°
(iv)

∠D = 60° , ∠E = 60° , ∠F = 60°
(v)

∠D = 68.68° , ∠E = 59.3° , ∠F = 52.02°

Question 20

20.

Which of the following are measures of an acute angled triangle ?

(i)

∠I = 100.8° , ∠J = 35.3° , ∠K = 43.9°
(ii)

∠I = 98.85° , ∠J = 42.54° , ∠K = 38.61°
(iii)

∠I = 45° , ∠J = 90° , ∠K = 45°
(iv)

∠I = 70.53° , ∠J = 70.53° , ∠K = 38.94°
(v)

∠I = 40.6° , ∠J = 90° , ∠K = 49.4°

Question 21

21.

Which of the following are measures of an obtuse angled triangle ?

(i)

∠D = 45° , ∠E = 90° , ∠F = 45°
(ii)

∠D = 60° , ∠E = 60° , ∠F = 60°
(iii)

∠D = 106.2° , ∠E = 35.18° , ∠F = 38.62°
(iv)

∠D = 64.63° , ∠E = 50.75° , ∠F = 64.62°
(v)

∠D = 42.88° , ∠E = 90° , ∠F = 47.12°

Question 22

22.

Which of the following are measures of an equilateral triangle ?

(i)

∠N = 60° , ∠O = 60° , ∠P = 60°
(ii)

∠N = 37.57° , ∠O = 90° , ∠P = 52.43°
(iii)

∠N = 85.98° , ∠O = 47.01° , ∠P = 47.01°
(iv)

∠N = 59.17° , ∠O = 51.32° , ∠P = 69.51°
(v)

∠N = 45° , ∠O = 90° , ∠P = 45°

Question 23

23.

Which of the following are measures of an isosceles triangle ?

(i)

∠B = 42.71° , ∠C = 90° , ∠D = 47.29°
(ii)

∠B = 61.28° , ∠C = 47.91° , ∠D = 70.81°
(iii)

∠B = 79.04° , ∠C = 50.48° , ∠D = 50.48°
(iv)

∠B = 60° , ∠C = 60° , ∠D = 60°
(v)

∠B = 45.21° , ∠C = 51.32° , ∠D = 83.47°

Question 24

24.

Which of the following are measures of a scalene triangle ?

(i)

∠E = 45.24° , ∠F = 67.38° , ∠G = 67.38°
(ii)

∠E = 45° , ∠F = 90° , ∠G = 45°
(iii)

∠E = 46.26° , ∠F = 66.87° , ∠G = 66.87°
(iv)

∠E = 51.32° , ∠F = 69.51° , ∠G = 59.17°
(v)

∠E = 60° , ∠F = 60° , ∠G = 60°

Question 25

25.

Which of the following are measures of a right angled triangle ?

(i)

∠E = 120.25° , ∠F = 25.59° , ∠G = 34.16°
(ii)

∠E = 60° , ∠F = 60° , ∠G = 60°
(iii)

∠E = 49.4° , ∠F = 90° , ∠G = 40.6°
(iv)

∠E = 53.13° , ∠F = 59.49° , ∠G = 67.38°
(v)

∠E = 59.49° , ∠F = 67.38° , ∠G = 53.13°

Question 26

26.

Which of the following are measures of an isosceles right angled triangle ?

(i)

∠N = 76.87° , ∠O = 45.57° , ∠P = 57.56°
(ii)

∠N = 64.53° , ∠O = 40.16° , ∠P = 75.31°
(iii)

∠N = 45° , ∠O = 90° , ∠P = 45°
(iv)

∠N = 60° , ∠O = 60° , ∠P = 60°
(v)

∠N = 98.85° , ∠O = 42.54° , ∠P = 38.61°

Question 27

27.

Which of the following are measures of an acute angled triangle ?

(i)

∠C = 103.34° , ∠D = 35.1° , ∠E = 41.56°
(ii)

∠C = 49.4° , ∠D = 90° , ∠E = 40.6°
(iii)

∠C = 134.18° , ∠D = 19.19° , ∠E = 26.63°
(iv)

∠C = 45° , ∠D = 90° , ∠E = 45°
(v)

∠C = 50.06° , ∠D = 64.97° , ∠E = 64.97°

Question 28

28.

Which of the following are measures of an obtuse angled triangle ?

(i)

∠H = 38.16° , ∠I = 90° , ∠J = 51.84°
(ii)

∠H = 102.91° , ∠I = 36.56° , ∠J = 40.53°
(iii)

∠H = 45° , ∠I = 90° , ∠J = 45°
(iv)

∠H = 54.56° , ∠I = 62.72° , ∠J = 62.72°
(v)

∠H = 77.36° , ∠I = 51.32° , ∠J = 51.32°

Question 29

29.

Find the measures of the three sides suitable to form a triangle?

(i)

OP = 8 cm , PQ = 20 cm , QO = 5 cm
(ii)

OP = 6 cm , PQ = 16 cm , QO = 5 cm
(iii)

OP = 20 cm , PQ = 7 cm , QO = 9 cm
(iv)

OP = 12 cm , PQ = 11 cm , QO = 12 cm
(v)

OP = 19 cm , PQ = 10 cm , QO = 7 cm

Question 30

30.

Find the measures of the three angles suitable to form a triangle?

(i)

∠O = 66.42° , ∠P = 66.42° , ∠Q = 47.16°
(ii)

∠O = 93.20° , ∠P = 45.40° , ∠Q = 109.60°
(iii)

∠O = 57.30° , ∠P = 88.50° , ∠Q = 31.20°
(iv)

∠O = 97.60° , ∠P = 112.80° , ∠Q = 105.30°
(v)

∠O = 41.50° , ∠P = 97.20° , ∠Q = 117.80°

Assignment Key