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The difference of two complementary angl...

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

A

`60^(@) , 30^(@)`

B

`70^(@) , 40^(@)`

C

`20^(@) , 50^(@)`

D

`105^(@) , 75^(@)`

Text Solution

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A
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NCERT EXEMPLAR-LINES AND ANGLES -Exercise
  1. In Fig. 5.15, the value of y is

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

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

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

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  5. In Fig a and b are

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

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

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

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

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

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

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

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

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

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

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

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  17. Vertically opposite angles are always

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

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  19. If an angle is 60^(@) less than two times of its supplement, then the ...

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  20. In Fig. 5.28, PQ || RS. If angle1=(2a+b)^(@) and angle6=(3a–b)^(@), ...

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