Home
Class 10
MATHS
From an external point P, two tangents P...

From an external point P, two tangents PA and PB, are drawna to a circle with centre O. At one point E on the circle, a tangent is drawn which intersects PA and PB at C and D respectively. If PA = 10 cm find the perimeter of the triangle PCD.

Promotional Banner

Topper's Solved these Questions

  • ARITHMETIC PROGRESSIONS

    AGRAWAL PUBLICATION|Exercise EXAMPLE|102 Videos

  • COORDINATE GEOMETRY

    AGRAWAL PUBLICATION|Exercise EXAMPLE|70 Videos

Similar Questions

Explore conceptually related problems

From an external point P, two tangents, PA and PB are drawn to a circle with centre 0. At one point E on the circle tangent is drawn which intersects PA and PB at C and D, respectively. If PA=10 cm, find the perimeter of the triangle PCD.

From a point P, two tangents PA and PB are drawn to a circle with centre O. If OP= diameter of the circle,show that APB is equilateral.

From the external point P tangents PA and PB are drawn to a circle with centre O. If angle PAB = 50^(@) , then find angle AOB .

From an external point two tangents PA and PB are drawn to the circle with center O. Prove that OP is perpendicular bisector of AB.

From an external point P ,tangents PA and PB drawn to a circle with centre O .If CD is the tangent to the circle at a point E and PA=14cm, find the perimeter of PCD

Two tangents PA and PB are drawn to a circle with centre O from an external point P. Prove that angle APB = 2 angle OAB

From a point P, two tangents PA and PB are drawn to a circle with centre O and radius r. If OP=2r, show that triangleAPB is equilateral.

AGRAWAL PUBLICATION-CIRCLES-EXAMPLE
  1. In the figure AOB is the diameter of a circle with centre O. The tange...

    Text Solution

    |

  2. Prove that the lengths of tangents drawn from an external point to a c...

    Text Solution

    |

  3. In the given figure, PQ is a tangent from an external point P and QOR ...

    Text Solution

    |

  4. In the figure are two concentric circles of radii 6 cm and 4 cm, with ...

    Text Solution

    |

  5. In the given figure, two tangents TP and TQ are drawn to a circle with...

    Text Solution

    |

  6. Prove that tangent drawn at any point of a circle is perpendicular to ...

    Text Solution

    |

  7. Prove that the tangent drawn at the mid point of an arc of a circle is...

    Text Solution

    |

  8. In the figure two circles touch each other at A. A common tangents tou...

    Text Solution

    |

  9. In the figure PQ is a chord of length 8 cm of a circle of radius 5 cm....

    Text Solution

    |

  10. Let S denote the semiperimeter of a triangle ABC in which BC = a, CA =...

    Text Solution

    |

  11. From an external point P, two tangents PA and PB, are drawna to a circ...

    Text Solution

    |

  12. In the figure, O is the centre of a circle of radius 5 cm. T is a poin...

    Text Solution

    |

  13. In the given figure, XY and X'Y' are two parallel tangents to a circle...

    Text Solution

    |

  14. If an isosceles triangle ABC, in which AB = AC = 6 cm, is inscribed in...

    Text Solution

    |

  15. In a right triangle ABC in which angle B = 90^@, a circle is drawn wit...

    Text Solution

    |

  16. In the given figure common tangents AB and CD to two circles with cent...

    Text Solution

    |

  17. A is a point at a distance 13 cm from the centre O of a circle of radi...

    Text Solution

    |

  18. In fig 7, two equals circles, with centres O and O', touch each other ...

    Text Solution

    |

  19. In the figure the radius of the circle of triangle ABC of area 84 cm^2...

    Text Solution

    |

  20. In the figure, PQ is a chord of length 8 cm of a circle of radius 5 cm...

    Text Solution

    |