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Find the radius of the smalles circle wh...

Find the radius of the smalles circle which touches the straight line `3x-y=6` at `(-,-3)` and also touches the line `y=x` . Compute up to one place of decimal only.

A

`1.2`

B

`1.6`

C

`1.8`

D

`2.1`

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The correct Answer is:
B
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MCGROW HILL PUBLICATION-CIRCLES AND SYSTEMS OF CIRCLES -EXERCISE (LEVEL 2 ( SINGLE CORRECT ANSWER TYPE QUESTIONS ))
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  4. The locus of a point which moves in a plane so that the sum of the squ...

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  5. Two circles are such that one is inscribed in and the other is circums...

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  8. The locus of the centers of the circles which cut the circles x^(2) + ...

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  9. An equation of the tangent at the point (5,2) of a circle is given by ...

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  10. A circle passes through the origin O and cuts the axes at A (a,0) and ...

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  11. If a circle cuts x ^(2) + y ^(2) =a ^(2) orthogonally and passes throu...

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  12. Two circles intersect at the point P (2,3) and the line joining the ot...

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  13. A system of circles is draen through two fixed points (-1,0) and (1,0)...

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  14. Find the radius of the smalles circle which touches the straight line ...

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  15. The area of the smaller portion of the circle x^2+y^2=4 cut off the l...

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  16. Find the equation of the normal to the circle x^2+y^2-2x=0 parallel to...

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  17. The chord along the line y-x=3 of the circle x^2 + y^2 = k^2, subtends...

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  18. (C) 2 45. Three concentric circles of which the biggest is x^2+ y^2= 1...

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  19. Radius of the circle centred at (3,-2) , or maximum area contained in ...

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  20. Equation of a family of circles, such that each member of the gamily p...

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