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In Figure, if l1||l2 , what is the value...

In Figure, if `l_1||l_2` , what is the value of `y` ? (a) 100 (b) 120 (c) 135 (d) 150

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Solution
'y=3x'(alternate angles)
also
'x' and 'y' are linear pairs
=>'x+y=180'
x+3x=180'
'4x=180'
=>'x=45'
Therefore'=>'y=3x=3×45=315'
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RD SHARMA-LINES AND ANGLES -All Questions
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  7. In Figure, P Q||R S ,\ /A E F=95^0,\ /B H S=110^0\ a n d\ /A B C=x^0do...

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  8. In Figure, if l1||l2, what is the value of x ? (a)90^0 (b) 85^0 (...

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  9. In Figure, if l1||l2 , what is x+y in terms of w\ a n d\ z? (a) 18...

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  10. In Figure, if l1||l2 , what is the value of y ? (a) 100...

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  11. In Figure, if l1||l2a n d\ l2||l4, what is y in terms of x? (...

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  12. In Figure, if l||m , what is the value of x? (a) 60 (b) 50 (c) 45...

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  13. In Figure, if line segment A B is parallel to the line segment C D...

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  14. In Figure, if C P\ ||D Q , then the measure of x is (a) 130^0 (b) 105...

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  15. In Figure, if A B||H F\ a n d\ D E\||F G , then the measure of /F D E ...

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  16. In Figure, if lines l\ a n d\ m are parallel, then x= (a) 20...

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  17. In Figure, if A B||C D , then x= (a) 100^0 (b) 105^0 (...

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  18. In Figure, if lines l\ a n d\ m are parallel lines, then x= ...

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  19. In Figure, if l\ m , then m= 105^0 (b) 65^0 (c) 40^0 (d) 25^0

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  20. In Figure, if lines l\ a n d\ m are parallel, then the value of x is...

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