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If one of the diameters of the circle x^...

If one of the diameters of the circle `x^2+ y^2-2x-6y + 6=0` is a chord to the circle with centre (2, 1), then the radius of the circles is :

A

`sqrt(3)`

B

`sqrt(2)`

C

3

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
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HIMALAYA PUBLICATION-CIRCLES-QUESTION BANK
  1. If the tangent at a point P on the circle x^2 + y^2 + 6x + 6y = 2, mee...

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  2. A square is formed by two pairs of straight lines x^2 - 8x + 12 = 0 an...

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  3. If one of the diameters of the circle x^2+ y^2-2x-6y + 6=0 is a chord ...

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  4. The locus of the centre of a circle which touches externally the cir...

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  5. The chord of contact of the pair of tangents drawn from each point on ...

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  6. Two vertices of an equilateral trianglt are (-1,0) and (1,0) and its t...

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  7. The length of the tangtnt from (0,0) to the circle 2x^(2)+2y^(2)+x-y+...

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  8. Consider the circleS, x^(2)+(y-1)^(2)=9 (x-1)^(2)+y^(2)=25 . These ...

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  9. The number of common tangents to the circles x^(2)+y^(2)-x=0 and x^(2)...

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  10. The radical centre of the three circleS deseribed on the three sides ...

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  11. The circle, which passes through the origin and whose centre lies on t...

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  12. The equation of the circle described on the common chord of the circ...

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  13. The equation of the circle which touches the lines x=0, y=0 and x=c(c...

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  14. The centre and radius of the circle with the segment of the line x+y=...

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  15. Two circleS of equal radius ' r ' cut orthogonally. If their centres ...

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  16. Given that for the circle x^(2)+y^(2)-4 x+6 y+1=0 the line with equat...

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  17. The equation of the normal to the circle x^(2)+y^(2)-2 x-2 y-2=0 is a...

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  18. The locus of the point of intersection of perpendicular tangents to th...

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  19. The equation of a circle with centre (4,1) and having 3 x+4 y-1=0 as ...

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  20. The slope of the radical axis of the circleS x^(2)+y^(2)+3 x+4 y-5=0 ...

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