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In two concentric circles, a chord of length 24cm of larger circle becomes a tangent to the smaller circle whose radius is 5cm. Find the radius of the larger circle.

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RD SHARMA-CIRCLES-All Questions
  1. If from a point P , tangents P Qa n dP R are drawn to the ellipse (...

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  2. In Figure, if tangents P Aa n dP B are drawn to a circle such that /A ...

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  3. In two concentric circles, a chord of length 24cm of larger circle ...

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  4. In two concentric circle, prove that a chord of larger circle which is...

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  5. From an external point P , two tangents P Aa n dP B are drawn to the c...

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  6. A circle is inscribed in a A B C having side 8c m ,10 c ma n d12 c m ...

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  7. A B C D is a quadrilateral such that /D=90^0dot A circle C(O , r) touc...

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  8. P Aa n dP B are tangents from P to the circle with centre Odot At poin...

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  9. In Figure, X Pa n dX Q are tangents from X to the circle with centre O...

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  10. In figure, sides Q P and R Q of P Q R are produced to point S and T re...

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  11. Two concentric circles are of diameters 30cm and 18cm. Find the length...

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  12. In the given figure, AB is diameter of a circle with centre O and AT i...

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  13. In Figure, A A B C is drawn to circumscribe a circle of radius 4cm su...

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  14. In Figure, B C is a tangent to the circle with centre OdotO E bisects ...

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  15. In Figure, two tangents A Ba n dA C are drawn to a circle with centre ...

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  16. In the given figure, O is the centre of the circle and OLM is perpendi...

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  17. In Figure, common tangents P Qa n dR s to two circle intersect at Adot...

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  18. Circles C(O, r) and C(O', r'), (r gt r') touch internally at P. PQ is...

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  19. Two concentric circles of radii 3 cm and 5 cm are given. Then length o...

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  20. In Figure, a circle with centre O is inscribed in a quadrilatal A B C ...

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