Home
Class 12
MATHS
If the lines 3x-4y+4=0a d n6x-8y-7=0 are...

If the lines `3x-4y+4=0a d n6x-8y-7=0` are tangents to a circle, then find the radius of the circle.

A

`3//4`

B

`1`

C

`7//8`

D

`11//10`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CIRCLES AND SYSTEMS OF CIRCLES

    MCGROW HILL PUBLICATION|Exercise EXERCISE (LEVEL 2 ( SINGLE CORRECT ANSWER TYPE QUESTIONS ))|30 Videos
  • CIRCLES AND SYSTEMS OF CIRCLES

    MCGROW HILL PUBLICATION|Exercise EXERCISE (NUMERICAL ANSWER TYPE QUESTIONS )|16 Videos
  • CIRCLES AND SYSTEMS OF CIRCLES

    MCGROW HILL PUBLICATION|Exercise EXERCISE (CONCEPT-BASED ( SINGLE CORRECT ANSWER TYPE QUESTIONS ))|20 Videos
  • CARTESIAN SYSTEM OF RECTANGULAR COORDINATES AND STRAIGHT LINES

    MCGROW HILL PUBLICATION|Exercise QUESTIONS FROM PREVIOUS YEARS. B - ARCHITECTURE (ENTRANCE EXAMINATION PAPERS)|14 Videos
  • COMPLEX NUMBERS

    MCGROW HILL PUBLICATION|Exercise QUESTIONS FROM PREVIOUS YEARS. B-ARCHITECTURE ENTRANCE EXAMINATION PAPER|17 Videos

Similar Questions

Explore conceptually related problems

If the lines 3x-4y+4=0 and 6x-8y-7=0 are tangents to a circle,then find the radius of the circle.

If the lines 3x-4y+4=0 and 6x-8y-7=0 are tangents to a circle,then find the radius of the circle.

If 2x-4y=9 and 6x-12y+7=0 are parallel tangents to circle, then radius of the circle, is

If lines 3x - 4y + 4 = 0 " and " 6x - 8y - 7 = 0 touch the same circle , then its radius is

MCGROW HILL PUBLICATION-CIRCLES AND SYSTEMS OF CIRCLES -EXERCISE (LEVEL 1 ( SINGLE CORRECT ANSWER TYPE QUESTIONS ))
  1. Find the equation of the circle passing through (1,0)a n d(0,1) and ha...

    Text Solution

    |

  2. From the point A (0, 3) on the circle x^2+4x+(y-3)^2=0 a chord AB is d...

    Text Solution

    |

  3. If the lines 3x-4y+4=0a d n6x-8y-7=0 are tangents to a circle, then fi...

    Text Solution

    |

  4. If the distances from the origin of the centers of three circles x^2+y...

    Text Solution

    |

  5. The distance between the chords of contact of tangents to the circle x...

    Text Solution

    |

  6. A variable circle passes through the point A(a ,b) and touches the x-a...

    Text Solution

    |

  7. The locus of a point, which moves such that the lengths of the tangent...

    Text Solution

    |

  8. The circle that can be drawn to touch the coordinate axes and the line...

    Text Solution

    |

  9. Area of an equilateral triangle inscribed in a circle of radius a is

    Text Solution

    |

  10. A point P moves such that PA/PB = p where A and B are two fixed pints ...

    Text Solution

    |

  11. The lengths of the tangents from the points A and B to a circle are l...

    Text Solution

    |

  12. Two circles which pass through the points A(0, a), B (0,-a) and touch ...

    Text Solution

    |

  13. No portion of the circle x ^(2) + y^(2) - 16x + 18y + 1=0 lies in the

    Text Solution

    |

  14. The geometrical mean between the smallest and greatest distance of the...

    Text Solution

    |

  15. The length of the longest ray drawn from the point (4,3) to the circle...

    Text Solution

    |

  16. If y pm a =0 is a pair of tangents to the circle x ^(2) + y ^(2) =a ^...

    Text Solution

    |

  17. The circle x ^(2) + y ^(2) =9 is contained in the circle x ^(2) + y ^(...

    Text Solution

    |

  18. The line (x-1) cos theta + (y-1) sin theta =1, for all values of theta...

    Text Solution

    |

  19. Equation of the circle which cuts each of the circles x ^(2) + y ^(2) ...

    Text Solution

    |

  20. The point at which the circle x ^(2) + y ^(2) + 2x + 6y + 4=0 and x ^(...

    Text Solution

    |