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The line joing the points of contact of two parallel tangents to a circle passes through the centre.Prove it.

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R G PUBLICATION-CIRCLES-EXERCISE
  1. The line joing the points of contact of two parallel tangents to a cir...

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  2. How many tangents can a circle have?

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  3. A tangents to a circle intersects it in points

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  4. A line intersecting a circle in two points is called a

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  5. A circle can haveparallel tangents at the most.

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  6. The common points of a tangnt to a circle and the circle is called

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  7. A tangent PQ at a point P of a circle of radius 5 cm meets a line thro...

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  8. Draw a circle and two line parallel to a given line such that one is a...

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  9. From a point Q,the length of the tangent to a circle is 24 cm and the ...

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  10. In Fig.10.11,if TP and TQ are the tangent to a circle with centre O so...

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

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  12. Prove that the tangents drawn at the ends of a diameter of a circle ar...

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  13. Prove that the perpendicular at the points of contact to the tangents ...

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  14. The length of a tangent from a point A at distance 5 cm from the centr...

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

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  16. In Fig.10.13, XYandX'Y' are two parallel tangent to a circle with cen...

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

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  18. Prove that parallelogram circumscribing a circle is a rhombus.

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  19. Prove that opposite sides of a quadrilateral circumscribing a circle s...

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  20. In figure ,if AD,AE, and BC are tangents to the Circle at D,E and F re...

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  21. In the adjacent figure if AB=12 cm,BC=8cm and AC=10 cm then the value ...

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