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Prove that the angle between two tang...

Prove that the angle between two tangents drawn from an external point to a circle is supplementary to the angle subtended by the line segments joining the points of contact at the centre.

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Prove that the angle between the two tangents drawn from an external point to a circle is supplementary to the angle subtended by the line-segment joining the points of contact at the centre.

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RD SHARMA ENGLISH-CIRCLES-All Questions
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  2. In Figure, n and m are two parallel tangents at A and B . The tang...

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

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

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

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

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  7. Find the locus of centres of circles which touch two intersecting l...

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  8. Find the locus of centres of circles which touch two intersecting l...

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  9. If P T is a tangent at T to a circle whose centre is O and O P=1...

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  10. Find the length of a tangent drawn to a circle with radius 5 cm, fr...

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  11. A point is 26 cm away from the centre O of a circle and the leng...

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  12. If from any point on the common chord of two intersecting circles, ...

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  13. If the sides of a quadrilateral touch a circle, prove that the sum ...

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  14. If A B ,\ A C ,\ P Q are tangents in Fig. 10.51 and A B=5c m , find...

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  15. Prove that the intercept of a tangent between two parallel tangents...

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  16. In Fig. P Q is tangent at a point R of the circle with centre O...

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  17. If P A and P B are tangents from an outside point P such that P A=10...

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  18. From an external point P , tangents P A and P B drawn to a circl...

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  19. In Fig. 10.53, A B C is a right triangle right-angled at B such ...

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  20. From a point P , two tangents P A and P B are drawn to a circle ...

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