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Two concentric circles of radii a and b ...

Two concentric circles of radii a and b `(agtb)` are given . The chord AB of larger circle touches the smaller circle at C, the length of AB is ……

A

`2sqrt(a^(2)-b^(2))`

B

`sqrt(a^(2)-b^(2))`

C

`2sqrt(a^(2)+b^(2))`

D

`sqrt(a^(2)+b^(2))`

Text Solution

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The correct Answer is:
A
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VGS PUBLICATION-BRILLIANT-TANGENT AND SECANTS TO A CIRCLE -CREATIVE BITS FOR CCE MODEL EXAMINATION
  1. The length of the tangents to frome a point A to a circle of radius 3 ...

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  2. The length of the tangnet draw from an ecterior point is 8 cm away fro...

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  3. Two concentric circles of radii a and b (agtb) are given . The chord ...

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  4. In the figure x = ………..

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  5. The semi perimeter of Delta=28 cm " then " AF +BD +CE is ………

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  6. The length of the tangnet draw from an ecterior point is 8 cm away fro...

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  7. In the figure PQ and PQ and PR are tngnets to the circle with centre '...

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  8. In the figure 'O' is the centre of the circle and PA, PB are tangents ...

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  9. In the figure PT is a tangent to the circle with centre 'O' then x =

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  10. Angle in a major segment is …..

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  11. The length of the tangent drawn to a circle with radius 'r' from a poi...

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  12. In the figure PT is a tngent drawn form P . If th radius is 7 cm and O...

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  13. PQ is the chord of a circle . The tangent XR drawn at X meets PQ at R ...

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  14. From the figure ,angle DAC……….

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  15. In the figures AB is a diameter and Ac is chord of the circle such tha...

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  16. If two tangents inclined at an angle of 60^(@) are drawn to a circle o...

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  17. To draw a pair of tangents to a circle which are inclined to each othe...

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  18. The radius of a circle is equal to the sum of the circumfernces of two...

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  19. If the radii of two concentric circles are 5 cm and 13 cm then the len...

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  20. If tangents PA and PB from a point P to a circle with centre O are inc...

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