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The angles x and 90^(@) - x are...

The angles x and `90^(@) - x` are

A

supplementary

B

complementary

C

vertically opposite

D

making a linear pair

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NCERT EXEMPLAR-LINES AND ANGLES -Exercise
  1. Angles which are both supplementary and vertically opposite are

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  2. The angle which makes a linear pair with an angle of 61^(@) is of

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  3. The angles x and 90^(@) - x are

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  4. The angles x – 10^(@) and 190^(@) – x are

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  5. In Fig. 5.10, the value of x is

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  6. In Fig. 5.11 , if AB || CD , angleAPQ = 50^(@) and anglePRD = 130^(@) ...

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  7. In Fig. 5.12, lines l and m intersect each other at a point. Which of ...

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  8. If angle P and angle Q are supplementary and the measure of angle P is...

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  9. In Fig. , POR is a line . The value of a is

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  10. In Fig. 5.14 . POQ is a line . If x = 30^(@) , then angleQOR is

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

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

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

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

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

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  16. In Fig a and b are

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

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

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

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

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