SSC Board Practice

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SSC Grade VII - Triangles and Its Properties

Question 1

1.	The point of intersection of the altitudes of a triangle is called
	centroid orthocentre circumcentre excentre altitude

Question 2

2.	The sides of the triangle are
	EG     ,   GD     ,   DE       EF     ,   FD     ,   DE       FH     ,   HE     ,   EF       GH     ,   HF     ,   FG       FG     ,   GE     ,   EF

Question 3

3.	In the given figure, find the values of x ,y and z.
	x = 88° , y = 50° , z = 82° x = 92° , y = 50° , z = 78° x = 88° , y = 52° , z = 80° x = 90° , y = 48° , z = 82° x = 90° , y = 50° , z = 80°

Question 4

4.	Find the unknown marked angle in the following figure
	x = 49.49° x = 47.49° x = 46.49° x = 45.49° x = 48.49°

Question 5

5.	Two angles of a triangle measure 62° and 51° respectively. Find the measure of the third angle of the triangle
	66° 67° 65° 68° 69°

Question 6

6.	The exterior angles of the triangle are
	∠JIG , ∠KGH , ∠LHI ∠IHF , ∠JFG , ∠KGH ∠KJH , ∠LHI , ∠MIJ ∠HIF , ∠IFG , ∠JGI ∠IJG , ∠JGH , ∠KHJ

Question 7

7.	In the given figure, if LI = JL and IM = MK , find the value of x.
	x = 69° x = 68° x = 71° x = 70° x = 72°

Question 8

8.	Which of the following are measures of an equilateral triangle ?
	∠M = 40.91° , ∠N = 90° , ∠O = 49.09° ∠M = 45° , ∠N = 90° , ∠O = 45° ∠M = 76.87° , ∠N = 57.56° , ∠O = 45.57° ∠M = 60° , ∠N = 60° , ∠O = 60° ∠M = 77.36° , ∠N = 51.32° , ∠O = 51.32°

Question 9

9.	The altitude corresponding to the side   PQ
	PS       QT       OS       OR       OP

Question 10

10.	One angle of a triangle measures 36° and the other two angles are in the ratio 7 : 9. Find these angles.
	B = 63° , C = 81° B = 64° , C = 82° B = 65° , C = 83° B = 62° , C = 80° B = 61° , C = 79°

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