Home
Class 14
MATHS
The ratio of the angle angleA" and "angl...

The ratio of the angle `angleA" and "angle B` of a non-square rhombus ABCD is 4 : 5, then the value of `angleC` is :

A

`50^(@)`

B

`45^(@)`

C

`80^(@)`

D

`95^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • QUADRILATERAL

    LUCENT PUBLICATION|Exercise Exercise 7B|6 Videos

  • QUADRILATERAL

    LUCENT PUBLICATION|Exercise Exercise 7B|6 Videos

  • LINES AND ANGLES

    LUCENT PUBLICATION|Exercise EXERCISE 4B|5 Videos

  • TRIGONOMETRIC RATIO OF SPECIFIC ANGLES

    LUCENT PUBLICATION|Exercise Exercise 10B|10 Videos

Similar Questions

Explore conceptually related problems

If bisectors of angleA and angleB of a quadrilateral ABCD intersect each other at P, of angleB and angleC at Q, of angleC and angleD at R and of angleD and angleA at S, then PQRS is a

If the bisectors of two adjacent angles A and B of a quadrilateral ABCD intersect at a point O such that angleC + angleD = k angleAOB , then find the value of k - 1 is

If the bisectors of two adjacent angles A and B of a quadrilateral ABCD intersect at a point O such that angleC + angleD = k angleAOB , then the value of k-1 is

If ABCD is a parallelogram then angleA-angleC=

If angle A, angle B, angle C and angle D of a quadrilateral ABCD, taken in order, are in the ratio 3:7:6:4 then ABCD is a

If a=1 , b=sqrt3 and angleA = 30^(@) , find the value of the angle B :

LUCENT PUBLICATION-QUADRILATERAL -Exercise 7A
  1. The quadrilateral formed by joining the mid-points of the sides AB, BC...

    Text Solution

    |

  2. In the adjacent figure ABCD is a quadrilateral. AB, DC are parallel an...

    Text Solution

    |

  3. Let LMNP be a parallelogram and NR be perpendicular to LP. If the area...

    Text Solution

    |

  4. If a transversal line cuts two parallel lines then bisector of interna...

    Text Solution

    |

  5. In a parallelogram ABCD, M is the midpoint of BD and BM is bisector of...

    Text Solution

    |

  6. The angle subtended by side of a parallelogram with pair of other para...

    Text Solution

    |

  7. In a parallelogram ABCD, a side AB is extended to E such that BE = AB....

    Text Solution

    |

  8. ABCD is a square. M is the mid-point of AB and N is the mid-point of B...

    Text Solution

    |

  9. A parallelogram ABCD has sides AB = 24 cm and AD = 16 cm. The distance...

    Text Solution

    |

  10. ABCD is a rhombus. A line passing through C cuts extended line AD and ...

    Text Solution

    |

  11. In a quadrilateral ABCD, with unequal sides if the diagonals AC and BD...

    Text Solution

    |

  12. The length of the diagonal BD of the parallelogram ABCD is 18 cm. If P...

    Text Solution

    |

  13. ABCD is a cyclic trapezium whose sides AD and BC are parallel to each ...

    Text Solution

    |

  14. The ratio of the angle angleA" and "angle B of a non-square rhombus AB...

    Text Solution

    |

  15. If an exterior angle of a cyclic quadrilateral be 50^(@), then the opp...

    Text Solution

    |

  16. ABCD is a cyclic trapezium such that AD || BC. If angle ABC=70^(@), th...

    Text Solution

    |

  17. Each side of a rhombus is 10 cm, the sum of square of its diagonal is

    Text Solution

    |

  18. In a trapezium ABCD, AB is parallel to CD. If E is midpoint of side AD...

    Text Solution

    |

  19. Points E and F are respectively midpoints of sides AB and CD of a rect...

    Text Solution

    |

  20. The area of a parallelogram ABCD is equal to that right angled isoscel...

    Text Solution

    |