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If one of the four angles formed by t...

If one of the four angles formed by two intersecting lines is a right angle, then show that each of the four angles is a right angle.

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RD SHARMA ENGLISH-LINES AND ANGLES -All Questions
  1. Prove that the bisectorsof pair of vertically opposite angles are in t...

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  2. If two straight lines intersect each other, prove that the ray oppo...

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  3. If one of the four angles formed by two intersecting lines is a rig...

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  4. In figure, rays A B\ a n d\ C D intersect at O. (i) Determine y when x...

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  5. In Figure, lines A B ,\ C D\ a n d\ E F intersect at O. Find the measu...

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  6. A B ,\ C D ,\ a n d\ E F are three concurrent lines passing through ...

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  7. In Figure, lines A B\ a n d\ C D intersect at O. If /A O C+\ /B O E=70...

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  8. Which of the following statements are true (T) and which are false(F...

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  9. Fill in the blanks so as to make the following statements true: (i) If...

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  10. In Figure, m||n\ and /1=65^0. F i n d /5 a n d\ /8

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  11. In Figure, find the values of x\ a n d\ y and then show that A B||C ...

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  12. In Figure, If A B || C D ,\ C D || E F\ a n d\ y : z=3:7, find x.

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  13. In Figure, m||n and angles 1\ a n d\ 2 are in the ratio 3:2\ . Determi...

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  14. In Figure, l ,\ m\ a n d\ n are parallel lines intersected by a tra...

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  15. In Figure, given that A B||C Ddot If /1=(120-x)^@a n d\ /5=5x^@, find...

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  16. In Figure, given that A B||C D If /4=(x+20)^0a n d\ /5=(x+8)^0, find ...

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  17. In Figure, given that A B||C D If /2=(3x-10)^0\ a n d\ /8=(5x-30)^0, ...

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  18. In Figure, given that A B||C D If /1=(2x+y)^0a n d\ /6\ (3x-y)^0, det...

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  19. In Figure, given that A B||C D. If /2=(2x+30)^0,\ /4=(x+2y)^0a n d\ /6...

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  20. In Figure, given that A B||C D If /2=2(/1) , determine /7.

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