ICSE Board Practice

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ICSE Grade VI - Parallel Lines

Question 1

1.	In which of the figures given bellow, l ∦ m(not parallel)?
	IV II I III

Question 2

2.	Find the exterior alternate angles in the given figure
	∠1 , ∠5 ; ∠2 , ∠6 ; ∠3 , ∠7 ; ∠4 , ∠8 ∠1 , ∠4 ; ∠2 , ∠3 ; ∠5 , ∠8 ; ∠6 , ∠7 ∠3 , ∠5 ; ∠4 , ∠6 ∠1 , ∠8 ; ∠2 , ∠7 ∠3 , ∠6 ; ∠4 , ∠5

Question 3

3.	In the given figure l ∥ m. Find the value of 't'
	18 20 19 16 17

Question 4

4.	Find the value of 'u'
	133° 153° 123° 138° 128°

Question 5

5.	In the given figurel ∥ m. Find the value of 'y'
	51° 41° 46° 71° 56°

Question 6

6.	In the given figure, l ∥ m and n ∥ o and p ∥ q . Find the values of {e,f,g,h,i,j}
	83 ° , 55 ° , 83 ° , 42 ° , 55 ° , 42 ° 83 ° , 55 ° , 55 ° , 42 ° , 83 ° , 42 ° 42 ° , 83 ° , 55 ° , 55 ° , 42 ° , 83 ° 42 ° , 55 ° , 83 ° , 83 ° , 55 ° , 42 ° 55 ° , 42 ° , 83 ° , 55 ° , 42 ° , 83 °

Question 7

7.	In the given figure, AB ∥ CD and AC = CE. Find the values of x,y and z.
	x = 29° , y = 70° , z = 42° x = 31° , y = 70° , z = 40° x = 29° , y = 72° , z = 40° x = 33° , y = 70° , z = 38° x = 31° , y = 68° , z = 42°

Question 8

8.	Find the exterior angles in the given figure
	∠1 , ∠4 ; ∠2 , ∠3 ; ∠5 , ∠8 ; ∠6 , ∠7 ∠3 , ∠5 ; ∠4 , ∠6 ∠1 , ∠5 ; ∠2 , ∠6 ; ∠3 , ∠7 ; ∠4 , ∠8 ∠1 , ∠2 , ∠7 , ∠8 ∠3 , ∠4 , ∠5 , ∠6

Question 9

9.	Which of the following are true?
	a) If two lines are parallel to the same line, then they are perpendicular to each other b) If   d ∥ e   and   e ∥ f   , then   d ∥ f c) If   d ⟂ e   and   d ⟂ f   , then   e ⟂ f d) If two lines are parallel to the same line, then they are parallel to each other e) If   d ⟂ e   and   e ⟂ f   , then   d ⟂ f
	{a,b} {e,a,b} {c,d} {b,d} {c,d,b}

Question 10

10.	Which of the given figures is correct?
	III II I IV

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