EduSahara™ Worksheet

Question 1

1.

Which of the following are measures of an equilateral triangle ?

(i)

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

GH = 11 cm , HI = 13 cm , IG = 17.03 cm
(iii)

GH = 12 cm , HI = 14 cm , IG = 10 cm
(iv)

GH = 15 cm , HI = 10 cm , IG = 15 cm
(v)

GH = 11 cm , HI = 11 cm , IG = 11 cm

Question 2

2.

Which of the following are measures of an isosceles triangle ?

(i)

BC = 14 cm , CD = 10 cm , DB = 17.2 cm
(ii)

BC = 13 cm , CD = 12 cm , DB = 11 cm
(iii)

BC = 14 cm , CD = 14 cm , DB = 14 cm
(iv)

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

BC = 13 cm , CD = 12 cm , DB = 15 cm

Question 3

3.

Which of the following are measures of a scalene triangle ?

(i)

LM = 15 cm , MN = 12 cm , NL = 10 cm
(ii)

LM = 15 cm , MN = 10 cm , NL = 15 cm
(iii)

LM = 13 cm , MN = 13 cm , NL = 13 cm
(iv)

LM = 14 cm , MN = 15 cm , NL = 14 cm
(v)

LM = 12 cm , MN = 12 cm , NL = 16.97 cm

Question 4

4.

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

(i)

AB = 11 cm , BC = 19 cm , CA = 10 cm
(ii)

AB = 14 cm , BC = 15 cm , CA = 10 cm
(iii)

AB = 12 cm , BC = 13 cm , CA = 14 cm
(iv)

AB = 14 cm , BC = 12 cm , CA = 18.44 cm
(v)

AB = 15 cm , BC = 15 cm , CA = 15 cm

Question 5

5.

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

(i)

FG = 12 cm , GH = 12 cm , HF = 12 cm
(ii)

FG = 15 cm , GH = 15 cm , HF = 14 cm
(iii)

FG = 12 cm , GH = 19 cm , HF = 12 cm
(iv)

FG = 14 cm , GH = 14 cm , HF = 19.8 cm
(v)

FG = 12 cm , GH = 10 cm , HF = 13 cm

Question 6

6.

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

(i)

IJ = 13 cm , JK = 13 cm , KI = 14 cm
(ii)

IJ = 15 cm , JK = 20 cm , KI = 12 cm
(iii)

IJ = 15 cm , JK = 13 cm , KI = 19.85 cm
(iv)

IJ = 12 cm , JK = 12 cm , KI = 16.97 cm
(v)

IJ = 11 cm , JK = 17 cm , KI = 11 cm

Question 7

7.

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

(i)

CD = 14 cm , DE = 11 cm , EC = 13 cm
(ii)

CD = 12 cm , DE = 10 cm , EC = 15.62 cm
(iii)

CD = 14 cm , DE = 20 cm , EC = 12 cm
(iv)

CD = 11 cm , DE = 11 cm , EC = 15.56 cm
(v)

CD = 12 cm , DE = 14 cm , EC = 10 cm

Question 8

8.

Which of the following are measures of an equilateral triangle ?

(i)

∠B = 42.51° , ∠C = 90° , ∠D = 47.49°
(ii)

∠B = 60° , ∠C = 60° , ∠D = 60°
(iii)

∠B = 47.16° , ∠C = 66.42° , ∠D = 66.42°
(iv)

∠B = 46.95° , ∠C = 61.26° , ∠D = 71.79°
(v)

∠B = 45° , ∠C = 90° , ∠D = 45°

Question 9

9.

Which of the following are measures of an isosceles triangle ?

(i)

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

∠N = 60° , ∠O = 60° , ∠P = 60°
(iii)

∠N = 33.69° , ∠O = 90° , ∠P = 56.31°
(iv)

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

∠N = 66.74° , ∠O = 56.63° , ∠P = 56.63°

Question 10

10.

Which of the following are measures of a scalene triangle ?

(i)

∠B = 45° , ∠C = 90° , ∠D = 45°
(ii)

∠B = 64.78° , ∠C = 57.61° , ∠D = 57.61°
(iii)

∠B = 60° , ∠C = 60° , ∠D = 60°
(iv)

∠B = 85.98° , ∠C = 47.01° , ∠D = 47.01°
(v)

∠B = 48.37° , ∠C = 76.33° , ∠D = 55.3°

Question 11

11.

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

(i)

∠H = 49.76° , ∠I = 90° , ∠J = 40.24°
(ii)

∠H = 80.25° , ∠I = 58.67° , ∠J = 41.08°
(iii)

∠H = 60° , ∠I = 60° , ∠J = 60°
(iv)

∠H = 132.17° , ∠I = 28.14° , ∠J = 19.69°
(v)

∠H = 61.28° , ∠I = 69.98° , ∠J = 48.74°

Question 12

12.

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

(i)

∠D = 60° , ∠E = 60° , ∠F = 60°
(ii)

∠D = 45° , ∠E = 90° , ∠F = 45°
(iii)

∠D = 67.38° , ∠E = 53.13° , ∠F = 59.49°
(iv)

∠D = 133.81° , ∠E = 22.12° , ∠F = 24.07°
(v)

∠D = 75.31° , ∠E = 40.16° , ∠F = 64.53°

Question 13

13.

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

(i)

∠P = 121.87° , ∠Q = 31.72° , ∠R = 26.41°
(ii)

∠P = 114.22° , ∠Q = 34.37° , ∠R = 31.41°
(iii)

∠P = 38.66° , ∠Q = 90° , ∠R = 51.34°
(iv)

∠P = 47.01° , ∠Q = 85.98° , ∠R = 47.01°
(v)

∠P = 45° , ∠Q = 90° , ∠R = 45°

Question 14

14.

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

(i)

∠P = 132.72° , ∠Q = 25.73° , ∠R = 21.55°
(ii)

∠P = 66.87° , ∠Q = 46.26° , ∠R = 66.87°
(iii)

∠P = 55.83° , ∠Q = 49.32° , ∠R = 74.85°
(iv)

∠P = 46.97° , ∠Q = 90° , ∠R = 43.03°
(v)

∠P = 45° , ∠Q = 90° , ∠R = 45°

Question 15

15.

Which of the following are measures of an equilateral triangle ?

(i)

BC = 13 cm , CD = 15 cm , DB = 13 cm
(ii)

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

BC = 13 cm , CD = 11 cm , DB = 12 cm
(iv)

BC = 13 cm , CD = 15 cm , DB = 19.85 cm
(v)

BC = 15 cm , CD = 15 cm , DB = 15 cm

Question 16

16.

Which of the following are measures of an isosceles triangle ?

(i)

KL = 11 cm , LM = 13 cm , MK = 11 cm
(ii)

KL = 11 cm , LM = 11 cm , MK = 11 cm
(iii)

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

KL = 11 cm , LM = 14 cm , MK = 17.8 cm
(v)

KL = 14 cm , LM = 15 cm , MK = 13 cm

Question 17

17.

Which of the following are measures of a scalene triangle ?

(i)

NO = 15 cm , OP = 10 cm , PN = 15 cm
(ii)

NO = 12 cm , OP = 12 cm , PN = 16.97 cm
(iii)

NO = 14 cm , OP = 11 cm , PN = 14 cm
(iv)

NO = 13 cm , OP = 13 cm , PN = 13 cm
(v)

NO = 11 cm , OP = 14 cm , PN = 10 cm

Question 18

18.

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

(i)

LM = 13 cm , MN = 12 cm , NL = 17.69 cm
(ii)

LM = 14 cm , MN = 23 cm , NL = 13 cm
(iii)

LM = 10 cm , MN = 12 cm , NL = 12 cm
(iv)

LM = 11 cm , MN = 11 cm , NL = 11 cm
(v)

LM = 13 cm , MN = 14 cm , NL = 15 cm

Question 19

19.

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

(i)

HI = 12 cm , IJ = 12 cm , JH = 16.97 cm
(ii)

HI = 10 cm , IJ = 10 cm , JH = 10 cm
(iii)

HI = 11 cm , IJ = 14 cm , JH = 12 cm
(iv)

HI = 10 cm , IJ = 16 cm , JH = 10 cm
(v)

HI = 11 cm , IJ = 12 cm , JH = 10 cm

Question 20

20.

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

(i)

BC = 14 cm , CD = 23 cm , DB = 13 cm
(ii)

BC = 15 cm , CD = 13 cm , DB = 13 cm
(iii)

BC = 15 cm , CD = 21 cm , DB = 11 cm
(iv)

BC = 12 cm , CD = 12 cm , DB = 16.97 cm
(v)

BC = 10 cm , CD = 11 cm , DB = 14.87 cm

Question 21

21.

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

(i)

JK = 10 cm , KL = 12 cm , LJ = 15.62 cm
(ii)

JK = 13 cm , KL = 19 cm , LJ = 11 cm
(iii)

JK = 10 cm , KL = 14 cm , LJ = 11 cm
(iv)

JK = 11 cm , KL = 11 cm , LJ = 13 cm
(v)

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

Question 22

22.

Which of the following are measures of an equilateral triangle ?

(i)

∠O = 50.19° , ∠P = 90° , ∠Q = 39.81°
(ii)

∠O = 45° , ∠P = 90° , ∠Q = 45°
(iii)

∠O = 60° , ∠P = 60° , ∠Q = 60°
(iv)

∠O = 58.67° , ∠P = 80.25° , ∠Q = 41.08°
(v)

∠O = 45.24° , ∠P = 67.38° , ∠Q = 67.38°

Question 23

23.

Which of the following are measures of an isosceles triangle ?

(i)

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

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

∠D = 71.79° , ∠E = 46.95° , ∠F = 61.26°
(iv)

∠D = 65.16° , ∠E = 57.42° , ∠F = 57.42°
(v)

∠D = 60° , ∠E = 60° , ∠F = 60°

Question 24

24.

Which of the following are measures of a scalene triangle ?

(i)

∠G = 60° , ∠H = 60° , ∠I = 60°
(ii)

∠G = 67.38° , ∠H = 53.13° , ∠I = 59.49°
(iii)

∠G = 70.46° , ∠H = 54.77° , ∠I = 54.77°
(iv)

∠G = 45° , ∠H = 90° , ∠I = 45°
(v)

∠G = 71.38° , ∠H = 54.31° , ∠I = 54.31°

Question 25

25.

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

(i)

∠C = 38.16° , ∠D = 90° , ∠E = 51.84°
(ii)

∠C = 78.46° , ∠D = 44.42° , ∠E = 57.12°
(iii)

∠C = 60° , ∠D = 60° , ∠E = 60°
(iv)

∠C = 49.32° , ∠D = 55.83° , ∠E = 74.85°
(v)

∠C = 128.32° , ∠D = 25.84° , ∠E = 25.84°

Question 26

26.

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

(i)

∠D = 63.03° , ∠E = 73.69° , ∠F = 43.28°
(ii)

∠D = 134.62° , ∠E = 20.85° , ∠F = 24.53°
(iii)

∠D = 45° , ∠E = 90° , ∠F = 45°
(iv)

∠D = 60° , ∠E = 60° , ∠F = 60°
(v)

∠D = 74.85° , ∠E = 55.83° , ∠F = 49.32°

Question 27

27.

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

(i)

∠B = 135.59° , ∠C = 21.34° , ∠D = 23.07°
(ii)

∠B = 112.75° , ∠C = 26.05° , ∠D = 41.2°
(iii)

∠B = 45° , ∠C = 90° , ∠D = 45°
(iv)

∠B = 64.97° , ∠C = 50.06° , ∠D = 64.97°
(v)

∠B = 49.76° , ∠C = 90° , ∠D = 40.24°

Question 28

28.

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

(i)

∠D = 126.32° , ∠E = 24.77° , ∠F = 28.91°
(ii)

∠D = 81.08° , ∠E = 49.46° , ∠F = 49.46°
(iii)

∠D = 45° , ∠E = 90° , ∠F = 45°
(iv)

∠D = 75.31° , ∠E = 64.53° , ∠F = 40.16°
(v)

∠D = 40.6° , ∠E = 90° , ∠F = 49.4°

Question 29

29.

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

(i)

KL = 14 cm , LM = 13 cm , MK = 14 cm
(ii)

KL = 20 cm , LM = 6 cm , MK = 13 cm
(iii)

KL = 5 cm , LM = 5 cm , MK = 18 cm
(iv)

KL = 5 cm , LM = 18 cm , MK = 11 cm
(v)

KL = 6 cm , LM = 20 cm , MK = 6 cm

Question 30

30.

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

(i)

∠A = 117.50° , ∠B = 39.70° , ∠C = 44.80°
(ii)

∠A = 60.90° , ∠B = 115.20° , ∠C = 90.80°
(iii)

∠A = 62.18° , ∠B = 55.64° , ∠C = 62.18°
(iv)

∠A = 34.10° , ∠B = 43.30° , ∠C = 48.80°
(v)

∠A = 69.90° , ∠B = 34.90° , ∠C = 119.90°

Assignment Key