ICSE Board Practice

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ICSE Grade VII - Triangles

Question 1

1.	The median corresponding to the side   LJ
	KN       JN       LO       JK       JM

Question 2

2.	The point of intersection of the perpendicular bisectors of the sides of a triangle is called
	excentre median circumcentre altitude centroid

Question 3

3.	Which of the following are measures of an acute angled triangle ?
	MN = 10 cm , NO = 10 cm , OM = 10 cm MN = 15 cm , NO = 21 cm , OM = 11 cm MN = 12 cm , NO = 19 cm , OM = 13 cm MN = 14 cm , NO = 10 cm , OM = 17.2 cm MN = 10 cm , NO = 10 cm , OM = 14.14 cm

Question 4

4.	Which of the following are measures of a right angled triangle ?
	∠O = 49.4° , ∠P = 90° , ∠Q = 40.6° ∠O = 60° , ∠P = 60° , ∠Q = 60° ∠O = 61.28° , ∠P = 69.98° , ∠Q = 48.74° ∠O = 123.24° , ∠P = 29.62° , ∠Q = 27.14° ∠O = 73.74° , ∠P = 53.13° , ∠Q = 53.13°

Question 5

5.	Find the angles of the triangle
	G = 28° , H = 62° , I = 90° G = 28° , H = 60° , I = 92° G = 32° , H = 60° , I = 88° G = 30° , H = 60° , I = 90° G = 30° , H = 58° , I = 92°

Question 6

6.	The ratio between the base angle and the vertical angle of an isosceles triangle is 5 : 8. Find each angle of the triangle
	A = 78° , B = 50° , C = 52° A = 82° , B = 50° , C = 48° A = 78° , B = 52° , C = 50° A = 80° , B = 50° , C = 50° A = 80° , B = 48° , C = 52°

Question 7

7.	The median corresponding to the side   CD
	CF       CD       EH       CG       DG

Question 8

8.	The exterior angles of the triangle are
	∠NOL , ∠OLM , ∠PMO ∠POM , ∠QMN , ∠RNO ∠NMK , ∠OKL , ∠PLM ∠ONL , ∠PLM , ∠QMN ∠MNK , ∠NKL , ∠OLN

Question 9

9.	Which of the following are measures of an isosceles right angled triangle ?
	∠K = 60° , ∠L = 60° , ∠M = 60° ∠K = 51.32° , ∠L = 45.21° , ∠M = 83.47° ∠K = 93.58° , ∠L = 39.08° , ∠M = 47.34° ∠K = 45° , ∠L = 90° , ∠M = 45° ∠K = 52.62° , ∠L = 67.97° , ∠M = 59.41°

Question 10

10.	In the given figure, calculate the value of x.
	x = 69.74° x = 67.74° x = 71.74° x = 68.74° x = 70.74°

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