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If tangents PA and PB from a point P to a circle with centre O are inclined to each other at angle of `80^(@)` , then `anglePOA` is equal to

A

`50^@`

B

`60^@`

C

`70^@`

D

`80^@`

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BEYOND PUBLICATION-TANGENTS AND SECANTS TO CIRCLE-EXERCISE
  1. Choose the correct answer and give justification for each . The ang...

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  2. From a point P, the length of the tangent to a circle is 12 cm, and th...

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

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  4. If AP and AQ are the two tangents a circle with centre O , so that an...

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  5. In the adjacent figure, if quadrilateral PQRS circumstances a circle t...

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  6. In the adjacent figure APB is a tangent to the circle with centre 'O' ...

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  7. The length of the tangent drawn from a point 17 cm away from the centr...

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  8. In the adjacent figure, the length of the chord AB if PA = 6 cm and an...

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  9. A line intersecting a circle in two points is called a ………..

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  10. The number of tangents that can be drawn to a circle at any point on i...

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  11. The number of parallel tangents that can be drawn to a circle can have...

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  12. How many tangnet lines can be drawn to a circle from a point outside t...

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  13. Two concentric circles of radii 5 cm and 3 cm are draw . Find the leng...

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  14. Length of the arc of a quadrant of a circle of radius 'r' is

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  15. The length of the arc A xx B in the adjacent figure is

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  16. The area of a sector of a circle of radius 7 cm and central angle 45^...

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  17. In the adjacent figure, 'O' is the centre of the circle. The area of t...

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

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  19. The number of parallel tangents to a circle with a given tangent is ……

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  20. The length of the tangnet draw from an ecterior point is 8 cm away fro...

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