Home
Class 9
MATHS
ABC and BDE are two equilateral triangle...

ABC and BDE are two equilateral triangles such that D is the mid-point of BC. Then ar (BDE)=`1/4` ar(ABC).

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If ABC and BDE are two equilateral triangles such that D is the mid-point of BC, then find ar(triangleABC) : ar(triangleBDE)

Tick the correct answer and justify : ABC and BDE are two equilateral triangles such that D is the mid-point of BC. Ratio of the areas of triangles ABC and BDE is

ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE interesects BC at F, show that : ar(BDE) = 1/4 ar(ABC)

ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE interesects BC at F, show that : ar(BDE) = 1/2 ar(BAE)

ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE interesects BC at F, show that : ar(ABC) = 2ar(BEC)

ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE interesects BC at F, show that : ar(FED) = 1/8 ar(AFC)

ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE interesects BC at F, show that : ar(BFE) = ar(AFD)

ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE interesects BC at F, show that : ar(BFE) = 2ar(FED)

In the figure ABCD and EFGD are two parallelograms and G is the mid-point of CD. Then ar(DPC) = 1/2 ar(EFGD)

MBD-Areas of Parallelograms and Triangles-Exercise
  1. In Fig. , ABC and BDE are two equilateral triangles such that D is th...

    Text Solution

    |

  2. In Fig. , ABC and BDE are two equilateral triangles such that D is th...

    Text Solution

    |

  3. ABC and BDE are two equilateral triangles such that D is the mid-point...

    Text Solution

    |

  4. Diagonals AC and BD of quadrilateral ABCD intersect each other at P. S...

    Text Solution

    |

  5. P and Q are respectively the midpoints of sides AB and BC or a triangl...

    Text Solution

    |

  6. P and Q are respectively the midpoints of sides AB and BC or a triangl...

    Text Solution

    |

  7. P and Q are respectively the midpoints of sides AB and BC or a triangl...

    Text Solution

    |

  8. In Fig. ABC is a right triangle right angled at A. BCED, ACFG and AB...

    Text Solution

    |

  9. In Fig. ABC is a right triangle right angled at A. BCED, ACFG and AB...

    Text Solution

    |

  10. In Fig. ABC is a right triangle right angled at A. BCED, ACFG and AB...

    Text Solution

    |

  11. In Fig. ABC is a right triangle right angled at A. BCED, ACFG and AB...

    Text Solution

    |

  12. In Fig. ABC is a right triangle right angled at A. BCED, ACFG and AB...

    Text Solution

    |

  13. In Fig. ABC is a right triangle right angled at A. BCED, ACFG and AB...

    Text Solution

    |

  14. Identify (a),(b) and (c)

    Text Solution

    |

  15. Find x+y+z

    Text Solution

    |

  16. If E, F, G and H are the mid-points of sides of a parallelogram ABCD t...

    Text Solution

    |

  17. E is any point on median AD of DeltaABC. If ar (DeltaABE) = 10 cm^2 th...

    Text Solution

    |

  18. In trapezium ABCD AB||DC. If ar (AOD) = 15 cm^2 then ar (BOC) is :

    Text Solution

    |

  19. The median of a triangle divides it into two

    Text Solution

    |

  20. In which of the following figures , you find two polygons on the same ...

    Text Solution

    |