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If the tangent at a point `P` to a circle with centre `O` cuts a line through `O` at `Q` such that `P Q=24 c m` and `O Q=25 c m` . Find the radius of the circle.

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RD SHARMA ENGLISH-CIRCLES-All Questions
  1. How many tangents can a circle have?

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  2. O is the centre of a circle of radius 8 cm. The tangent at a point ...

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  3. If the tangent at a point P to a circle with centre O cuts a lin...

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  4. A point P is 13cm from the centre of the circle. The length of the ...

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  5. Find the length of the tangent drawn from a point whose distance fr...

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  6. A circle is touching the side B C of A B C at P and touching A ...

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  7. In Figure, the incircle of A B C touches the sides B C ,\ C A and A...

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  8. In Fig. 10.20, the sides A B ,\ B C and C A of triangle A B C touc...

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  9. In Figure, two circles touch each other at the point C . Prove that ...

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  10. A circle touches all the four sides of a quadrilateral A B C D . Pr...

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  11. If all the side of a parallelogram touch a circle, show that the pa...

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  12. The radius of the incircle of a triangle is 4 cm and the segments i...

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  13. Prove that the tangents at the extremities of any chord make equal ...

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  14. Two tangents T P and T Q are drawn to a circle with centre O fro...

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  15. P Q is a chord of length 8 cm of a circle of radius 5 cm. The tange...

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  16. In Figure, n and m are two parallel tangents at A and B . The tang...

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  17. Prove that the angle between two tangents drawn from an external po...

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  18. Show that tangent lines at the end points of a diameter of a circle...

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  19. Two concentric circles are of radii 5 cm and 3 cm. Find the length ...

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  20. A circle touches the sides of a quadrilateral A B C D at P ,\ Q ,\ ...

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