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In Fig. 5.15, the value of y is...

In Fig. 5.15, the value of y is

A

`30^(@)`

B

`15^(@)`

C

`20^(@)`

D

`22.5^(@)`

Text Solution

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NCERT EXEMPLAR-LINES AND ANGLES -Exercise
  1. In Fig. 5.14 . POQ is a line . If x = 30^(@) , then angleQOR is

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  2. The measure of an angle which is four times its supplement is

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  3. In Fig. 5.15, the value of y is

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  4. In Fig. 5.16, PA || BC || DT and AB || DC. Then, the values of a and b...

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  5. The difference of two complementary angles is 30^(@) . Then, the angle...

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  6. In Fig. PQ || SR and SP || RQ. Then, angles a and b are respectively

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  7. In Fig a and b are

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  8. If two supplementary angles are in the ratio 1 : 2, then the bigger an...

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  9. In Fig. 5.19, angleROS is a right angle and anglePOR and angleQOS a...

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  10. Statements a and b are as given below: a : If two lines intersect, t...

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  11. For Fig. 5.20, statements p and q are given below: p : a and b are f...

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  12. In Fig. 5.21, angleAOC and angleBOC form a pair of

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  13. In Fig. 5.22, the value of a is

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  14. In Fig. 5.23, if QP || SR, the value of a is

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  15. In which of the following figures, a and b are forming a pair of adjac...

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  16. In a pair of adjacent angles, (i) vertex is always common, (ii) one ar...

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  17. In Fig. 5.25, lines PQ and ST intersect at O. If anglePOR = 90^(@) an...

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  18. In Fig. 5.26, POQ is a line, then a is equal to

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  19. Vertically opposite angles are always

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  20. In Fig. 5.27, a = 40^(@) . The value of b is

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