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Angle between the tangent and radius dra...

Angle between the tangent and radius drawn through the point of contact is ……

A

`70^(@)`

B

`60^(@)`

C

`90^(@)`

D

`75^(@)`

Text Solution

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The correct Answer is:
C
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The common point of the tangent and the circle is called the point of contact and the tangents is said to touch the circle at the common point. Observe the tangents to the circle in the figures given below. How many tangents can you obtain to the circle.in all?See the points of contact. Draw radii from the points of contact. Do you see any thing special about the angle between the tangents and radii at the points of contact. All appear to be perpendicular to the corresponding tangents. How many tangents can you obtain to the circle in all?

Angle between the tangents drawn from the point (5,4) to the ellipse (x^(2))/(25)+(y^(2))/(16) = 1 is

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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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