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`triangleABC` is an isosceles triangle in which AB=AC, circumscribed about a circle. Prove that the base is bisccted by the point of contact.

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VK GLOBAL PUBLICATION-CIRCLES -PROFICIENCY EXERCISE (Short Answer Questions - II 3 mark)
  1. Two tangents PA and PB are drawn to a circle with centre O from an ext...

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  2. Two concentric circles area of radii 8cm and 5cm. Find the length of t...

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  3. triangleABC is an isosceles triangle in which AB=AC, circumscribed abo...

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  4. From a point P , two tangents P A and P B are drawn to a circ...

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  5. If AB,AC,PQ are tangents in Fig. , PX = 2cm and AB = 5cm Find the per...

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  6. A circle in inscribed in a Delta ABC having sides 8 cm , 10 cm and 12...

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

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  8. ABC is Right triangle, right angled at B such that BC = 6 and AB = 8 ...

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  9. In figure, AB and CD are common tangents to two circles of unequal rad...

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  10. In figure, common tangents AB and CD to two circles intersect at E. P...

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  11. Two tangents PQ and PR are drawn from an external point to a circle wi...

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  12. In Fig. 10.54, a circle touches all the four sides of a quadrilater...

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  13. PQL and PRM are tangents to a circle with centre O at points Q and R r...

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  14. A chord PQ of a circle is parallel to the tangent drawn at a point R ...

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  15. If from an external point P of a circle with centre O, two tangents PQ...

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  16. If Fig. 'O' is the centre of the circle Determine angleAQB and angleA...

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  17. From a point P, two tangents PA and PB are drawn to a circle with cent...

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  18. Find the actual length of sides of DeltaOTP (Fig)

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  19. Find the perimeter of DeltaDEFG . (Fig.) .

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  20. If d1,d2 (d2>d1) be the diameters of two concentric circles and c be t...

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