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 an acute angled triangle ?
	∠K = 134.18° , ∠L = 19.19° , ∠M = 26.63° ∠K = 45° , ∠L = 90° , ∠M = 45° ∠K = 46.97° , ∠L = 90° , ∠M = 43.03° ∠K = 69.98° , ∠L = 61.28° , ∠M = 48.74° ∠K = 105.64° , ∠L = 42.38° , ∠M = 31.98°

Question 2

2.	In  △GHI, if ∠G = 50° and ∠H = ∠I, find the measure of each of the equal angles of the triangle
	63° 65° 67° 64° 66°

Question 3

3.	The vertex opposite to the side   UV
	W V   WX     U

Question 4

4.	Which of the following are measures of an equilateral triangle ?
	BC = 15 cm , CD = 15 cm , DB = 15 cm BC = 11 cm , CD = 10 cm , DB = 13 cm BC = 13 cm , CD = 10 cm , DB = 16.4 cm BC = 10 cm , CD = 15 cm , DB = 10 cm BC = 10 cm , CD = 10 cm , DB = 14.14 cm

Question 5

5.	Which of the following are measures of a right angled triangle ?
	∠E = 59.3° , ∠F = 52.02° , ∠G = 68.68° ∠E = 64.32° , ∠F = 51.36° , ∠G = 64.32° ∠E = 110.46° , ∠F = 34.77° , ∠G = 34.77° ∠E = 42.27° , ∠F = 90° , ∠G = 47.73° ∠E = 60° , ∠F = 60° , ∠G = 60°

Question 6

6.	The angles of the triangle are
	∠L , ∠M , ∠O ∠M , ∠N , ∠O ∠K , ∠L , ∠N ∠K , ∠L , ∠M ∠L , ∠M , ∠N

Question 7

7.	In  △CDE, if ∠C = 62° and ∠D = 64°, find the measure of ∠E
	E = 53° E = 54° E = 55° E = 52° E = 56°

Question 8

8.	Which of the following are measures of an obtuse angled triangle ?
	∠C = 74.85° , ∠D = 49.32° , ∠E = 55.83° ∠C = 45° , ∠D = 90° , ∠E = 45° ∠C = 47.49° , ∠D = 90° , ∠E = 42.51° ∠C = 75.31° , ∠D = 64.53° , ∠E = 40.16° ∠C = 104.38° , ∠D = 34.11° , ∠E = 41.51°

Question 9

9.	In the given figure, QR ∥ ST, ∠LIR = 63° and IJ = KI. Find the measure of x.
	x = 56° x = 55° x = 52° x = 54° x = 53°

Question 10

10.	The side opposite to the vertex Q
	RP       OP       PQ       OS       QO

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