CBSE Board Practice

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CBSE Grade VII - The Triangle and its Properties

Question 1

1.	Which of the following are measures of a scalene triangle ?
	IJ = 13 cm , JK = 15 cm , KI = 13 cm IJ = 14 cm , JK = 11 cm , KI = 15 cm IJ = 11 cm , JK = 11 cm , KI = 11 cm IJ = 10 cm , JK = 11 cm , KI = 10 cm IJ = 13 cm , JK = 13 cm , KI = 18.38 cm

Question 2

2.	The sides of the triangle are
	IK     ,   KH     ,   HI       IJ     ,   JH     ,   HI       HJ     ,   JG     ,   GH       HI     ,   IG     ,   GH       JK     ,   KI     ,   IJ

Question 3

3.	In a right angled triangle, if one of the angles is 42.88°, find the third angle
	47.12° 62.12° 57.12° 77.12° 52.12°

Question 4

4.	In a right-angled triangle, the two acute angles are in the ratio 13 : 5. Find these angles.
	A = 64° , C = 24° A = 67° , C = 27° A = 65° , C = 25° A = 63° , C = 23° A = 66° , C = 26°

Question 5

5.	Calculate the value of x in the following figure
	x = 54.13° x = 57.13° x = 55.13° x = 53.13° x = 56.13°

Question 6

6.	The vertex opposite to the side   TU
	T   VW     U V

Question 7

7.	Find the measure of each of the two equal angles of an isosceles right-angled triangle.
	47° 43° 46° 44° 45°

Question 8

8.	The altitude corresponding to the side   NL
	NQ       LM       LO       MP       LP

Question 9

9.	Which of the following are measures of an isosceles right angled triangle ?
	∠K = 137.92° , ∠L = 21.04° , ∠M = 21.04° ∠K = 60° , ∠L = 60° , ∠M = 60° ∠K = 45° , ∠L = 90° , ∠M = 45° ∠K = 59.3° , ∠L = 52.02° , ∠M = 68.68° ∠K = 66.87° , ∠L = 46.26° , ∠M = 66.87°

Question 10

10.	Find the unknown marked angle in the following figure
	x = 36.05° x = 37.05° x = 33.05° x = 35.05° x = 34.05°

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