Home
Class 9
MATHS
ABDE is a parallelogram. F is the mid-po...

ABDE is a parallelogram. F is the mid-point of ED. If the area of the triangle ABD be 20 sq.cm, find the area of `DeltaAEF`.

Promotional Banner

Topper's Solved these Questions

  • THEOREMS ON AREAS

    CALCUTTA BOOK HOUSE|Exercise EXERCISE-3|40 Videos
  • SET THEORY

    CALCUTTA BOOK HOUSE|Exercise EXERCISE-1|37 Videos
  • THEOREMS ON CONCURRENCE

    CALCUTTA BOOK HOUSE|Exercise EXERCISE Long-answer type questions|17 Videos

Similar Questions

Explore conceptually related problems

The points B, C and R of the parallelograms ABCD and CPQR are collinear and BP || DR. If the area of the parallelogram ABCD be 44 sq.cm, then the area of DeltaPQR .

The area of equilateral triangle is 25 sq-cm Find its perimeter.

The base of a triangle is 18m more than the double of its height. If the area of the triangle be 360 sq-m, then find the height of the triangle.

P, Q, R and S are the mid-point of the sides AB, BC, CD and DA of the parallelogram ABCD respectively. If the area of the ABCD be 88 sq.cm, then the area of the PQRS is

(iv) The centroid of the Delta ABC is G, If the area of the Delta GBC be 12 Sq. cm, the area of the Delta ABC is

The length of the base AB of the parallelogram ABCD is 10 cm. If the area of ABCD be 110 sq.cm, then the height of ABCD with respect to the base AB is

D is a point on AC of DeltaABC such that AD:DC=3:2, If the area of the DeltaABC be 40 sq cm, then the area of the DeltaBDC is

The base of a triangle is 4cm longer than its altitude. If the area of the triangle is 48 sq.cm then find its base and altitude.

The area of the parallelogram ABCD is 44 sq.cm. P is the mid-point of BC. Determine the area of the DeltaABP .

The area of the parallelogram ABCD is 100 sq. units. P is the mid-point of BC. Determine the area of the DeltaABP .

CALCUTTA BOOK HOUSE-THEOREMS ON AREAS-EXERCISE-3
  1. ABDE is a parallelogram. F is the mid-point of ED. If the area of the ...

    Text Solution

    |

  2. D is any point on the side QR of the parallelogram PQRS. DeltaPQDandDe...

    Text Solution

    |

  3. E is any point on the side BC of the parallelogram ABCD. If DeltaABEan...

    Text Solution

    |

  4. The ratio of the areas of a triangle and a parallelogram having the sa...

    Text Solution

    |

  5. The area of a rhombus is the area of a triangle having same base and ...

    Text Solution

    |

  6. The length of the base AB of the parallelogram ABCD is 10 cm. If the a...

    Text Solution

    |

  7. P is any point on the side BC of the parallelogram ABCD. Extended DP i...

    Text Solution

    |

  8. A parallelogram of area P, a rhombus of area R and a triangle of area ...

    Text Solution

    |

  9. In the trapezium ABCD, AB || DC (ABltDC)andAEbotDC. If AB = a, DC = b ...

    Text Solution

    |

  10. P, Q, R and S are the mid-point of the sides AB, BC, CD and DA of the ...

    Text Solution

    |

  11. If the length of the diagonals AC and BD of a rhombus ABCD be a cm and...

    Text Solution

    |

  12. E and F are the mid-points of the sides AB and DC of the parallelogram...

    Text Solution

    |

  13. The points B, C and R of the parallelograms ABCD and CPQR are collinea...

    Text Solution

    |

  14. ABCD is a quadrilateral. AP is a line segment drawn through A and para...

    Text Solution

    |

  15. AD is a medium of DeltaABC. If the area of DeltaACD be x sq.cm, then f...

    Text Solution

    |

  16. Find the area of a parallelogram having base 15 cm and hight 8.2 cm.

    Text Solution

    |

  17. The ratio of the base and height of a triangle is 7 : 6, the sum of it...

    Text Solution

    |

  18. O is any point inside the equilateral triangle ABC. The perpendicular ...

    Text Solution

    |

  19. Find the co ordinate on the Y axis cut by the straight line 2x+3y=12

    Text Solution

    |

  20. The area of the parallelogram ABCD is 44 sq.cm. P is the mid-point of ...

    Text Solution

    |

  21. A square and a rhombus stand on the same base of length 10 cms. Show t...

    Text Solution

    |