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A B and C D are two common tangents t...

`A B` and `C D` are two common tangents to circles which touch each other at `C` . If `D` lies on `A B` such that `C D` =4cm, then `A B` is equal to (a) 4cm (b) 6cm (c) 8cm (d) 12cm

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RD SHARMA ENGLISH-CIRCLES-All Questions
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  2. The length of the tangent drawn from a point 8cm away from the centr...

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  5. In Figure, R Q is a tangent to the circle with centre O . If S Q=6c ...

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  7. In Figure, A P is a tangent to the circle with centre O such that O ...

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  8. A P and A Q are tangents drawn from a point A to a circle with cen...

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  9. At one end A of a diameter A B of a circle of radius 5cm, tangent X...

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  10. If P T is tangent drawn from a point P to a circle touching it at ...

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  13. In Figure, if A P=10 c m , then B P= (a) sqrt(91)c m (b) sqrt(127)c m...

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  14. In Figure, if quadrilateral P Q R S circumscribes a circle, then P D...

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  15. In Figure, two equal circles touch each other at T , if Q P=4. 5 c m ,...

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  16. In Figure, A P B is a tangent to a circle with centre O at point P ....

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  17. In Figure, P R= (a) 20cm (b) 26cm (c) 24cm (d) 28cm

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  18. In Figure, there are two concentric circles with centre O . P R and P ...

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  19. In Fig. 10.94, if A B=8c m and P E=3c m , then A E= (FIGURE) (a) ...

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  20. In Fig. 10.95, P Q and P R are tangents drawn from P to a circle...

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