Home
Class 8
MATHS
Can a quadrilateral ABCD be a parallelog...

Can a quadrilateral ABCD be a parallelogram if : `angle D+angleB=180^@`?

Text Solution

Verified by Experts

The correct Answer is:
ABCD is not a parallelogram.
Promotional Banner

Topper's Solved these Questions

  • UNDERSTANDING QUADRILATERALS

    SWAN PUBLICATION|Exercise EXERCISE 3.4|19 Videos

  • UNDERSTANDING QUADRILATERALS

    SWAN PUBLICATION|Exercise TRY THESE|12 Videos

  • UNDERSTANDING QUADRILATERALS

    SWAN PUBLICATION|Exercise EXERCISE 3.2|10 Videos

  • SQUARES AND SQUARE ROOTS

    SWAN PUBLICATION|Exercise Exercise 6.4|37 Videos

  • VISUALISING SOLID SHAPES

    SWAN PUBLICATION|Exercise Exercise 10.3 |11 Videos

Similar Questions

Explore conceptually related problems

Can a quadrilateral ABCD be a parallelogram if : angle A=70^@ and angleC=65^@ ?

Can a quadrilateral ABCD be a parallelogram if :AB=DC=8cm,AD=4cm and BC =4.4cm?

In a quadrilateral ABCD, AO and BO are bisectors of angleA and angle B respectively. Prove that angleAOB=1/2(angleC+angleD)

Diagonals of a quadrilateral ABCD bisect each other. If angleA=35^@ determine angleB .

In quadrilateral ABCD, AP and BP are bisector of angleA and angleB respectively, then find the value of x

Fill ups A quadrilateral is a parallelogram if both pairs of opposite angles is………………. .

Given statement below. Identify the statement given below as contrapositive or converse of each other. If a quadrilateral is a parallelogram, then its diagonals bisect each other. (i) If the diagonals of a quadrilateral do not bisect each other, then the quadrilateral is not a parallelogram. (ii) If the diagonals of a quadrilateral bisect each other, then it is a parallelogram.

In a quadrilateral ABCD, if AO and BO are the bisectors angleA and angleB respectively, angleC=70^@ and angleD=30^@ then angleAOB =

SWAN PUBLICATION-UNDERSTANDING QUADRILATERALS-EXERCISE 3.3
  1. Given a parallelogram ABCD. Complete each statement along with the def...

    Text Solution

    |

  2. Given a parallelogram ABCD. Complete each statement along with the def...

    Text Solution

    |

  3. Consider the following parallelograms. Find the values of the unknowns...

    Text Solution

    |

  4. Consider the following parallelograms. Find the values of the unknowns...

    Text Solution

    |

  5. Consider the following parallelograms. Find the values of the unknowns...

    Text Solution

    |

  6. Consider the following parallelograms. Find the values of the unknowns...

    Text Solution

    |

  7. Consider the following parallelograms. Find the values of the unknowns...

    Text Solution

    |

  8. Can a quadrilateral ABCD be a parallelogram if : angle D+angleB=180^@?

    Text Solution

    |

  9. Can a quadrilateral ABCD be a parallelogram if :AB=DC=8cm,AD=4cm and B...

    Text Solution

    |

  10. Can a quadrilateral ABCD be a parallelogram if : angle A=70^@and angle...

    Text Solution

    |

  11. Draw a rough figure of a quadrilateral that is not a parallelogram but...

    Text Solution

    |

  12. The measures of two adjacent angles of a parallelogram are in the rati...

    Text Solution

    |

  13. Two adjacent angles of a parallelogram have equal measure. Find the me...

    Text Solution

    |

  14. The adjacent figure HOPE is a parallelogram. Find the angle measure x,...

    Text Solution

    |

  15. The following figures GUNS and RUNS are parallelograms. Find x and y....

    Text Solution

    |

  16. The following figures GUNS and RUNS are parallelograms. Find x and y....

    Text Solution

    |

  17. In the above figure both RISK and CLUE are parallelograms. Find the va...

    Text Solution

    |

  18. Explain how this figure is a trapezium. Which of its two sides are par...

    Text Solution

    |

  19. Find m angle C in Fig. if bar(AB ) || bar( DC).

    Text Solution

    |

  20. Find the measure of angleP and angle S ifSP||RQ in Fig.(If you find m...

    Text Solution

    |