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The radius of a circle is doubled then i...

The radius of a circle is doubled then its area becomes ……………….. Times.

A

5

B

4

C

9

D

none

Text Solution

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The correct Answer is:
B
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VGS PUBLICATION-BRILLIANT-TANGENT AND SECANTS TO A CIRCLE -CREATIVE BITS FOR CCE MODEL EXAMINATION
  1. Angle made by minute hand in 1 m = …………..

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  2. x^(@)=60^(@),r=14 cm then area of sector = ………. cm^(2)

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  3. Area of a regular hexagon whose side is 'a' cm is……………

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  4. Parallelogram circumscribing a circle is a ………………..

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  5. In the figure XY and X'Y' are two parallel tangents to a circle with ...

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  6. Angle between the tangent and radius drawn through the point of contac...

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  7. If AP and AQ are the two tangents a circle with centre O , so that an...

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  8. In the figure AB , = 6.2cm then CD = …………… cm .

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  9. Area of circle interms of diameter is ………..

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  10. In the figure AP , = 12 cm , PB = 16 cm and pi=3 then perimeter of sh...

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  11. A bicycle wheel makes 75 revolutions per minute to maintain a speed of...

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  12. Angle described by hour hand in 12 hoours is ……..

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  13. Each angle in a square is ……

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  14. In the figure , the area of shaded region is …………. cm^(2).

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  15. Perimeter of semicircle is …………….. Units .

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  16. In the figure the relation among a , b and c is …………….

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  17. In the figure , a = ………….

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  18. Perimeter of sectors = ……………….

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  19. What do you observe from the below figure ?

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  20. The radius of a circle is doubled then its area becomes ……………….. Time...

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