Home
Class 9
MATHS
In figure. D and E are the mid-points...

In figure.
D and E are the mid-points o sides. AB, AC respectively of `triangleABC`. If `ar(triangleABC) = 256 cm^2`, then find `ar(triangleBDE)`

Promotional Banner

Topper's Solved these Questions

  • AREA OF PARALLELOGRAMS AND TRIANGLES

    MODERN PUBLICATION|Exercise EXERCISE|83 Videos
  • CIRCLES

    MODERN PUBLICATION|Exercise EXERCISE|94 Videos

Similar Questions

Explore conceptually related problems

D,E and F are mid-points of the sides BC, CA and AB respectively of triangleABC . Prove that ar(triangleDEF) = 1/4 ar (triangleABC)

True/False In a triangleABC,D,E,F are the mid-points of the sides BC,CA and AB respectively. If ar(triangleABC) = 16cm^2 , then ar(trap FBCE) is 8cm^2

D,E and F are mid-points of the sides BC, CA and AB respectively of triangleABC . Prove that ar(||gmBDEF)= 1/2 ar (triangleABC)

P is any point on base BC of triangleABC and D is the mid-point of the BC. DE is drawn parallel to PA to meet AC at E. If ar(triangleABC)= 12 cm^2 , then find area of triangleEPC

In the fig D,E and F are the mid points of the sides BC,CA and AB respectively of triangleABC . If BE and DF intersect at X while CF and DE ntersect at Y. prove that XY=1/4BC

D and E are points on sides AB and AC respectively of DeltaABC such that ar (DBC) = ar (EBC). Prove that DE II BC .

In a ||gm ABCD, if P and Q are mid-points of AB and CD respectively and ar(||gm ABCD) = 16 cm^2 , then ar(||gm APQD) = ?

If in a triangle AB=a,AC=b and D,E are the mid-points of AB and AC respectively, then DE is equal to

In triangleABC , if L and M are the points on AB AC, respectivley such that LM||BC. Prove that ar(LOB) = ar(MOC)

In triangleABC , it L and M are points on AB and AC respectively such that LM||BC. Prove that : ar(triangleLBC) = ar(triangleMBC)

MODERN PUBLICATION-AREA OF PARALLELOGRAMS AND TRIANGLES-EXERCISE
  1. In a ||gm ABCD, if P and Q are mid-points of AB and CD respectively an...

    Text Solution

    |

  2. The median of a triangle divides it into two

    Text Solution

    |

  3. The mid-point of the sides of a triangle along with any of the vertice...

    Text Solution

    |

  4. Two parallelograms are on equal bases andbetween the same parallels. T...

    Text Solution

    |

  5. ABCD is a quadrilateral whose diagonal AC divides it into two parts, e...

    Text Solution

    |

  6. If a triangle and a parallelogram are on the same base and between sam...

    Text Solution

    |

  7. triangleABC~ trianglePQR. If ar(ABC) = 2.25 m^2. ar(PQR) = 6.25m^2,PQ ...

    Text Solution

    |

  8. If triangleABC~triangleDEF, BC = 4 cm, EF = 5 cm and ar(triangleABC) =...

    Text Solution

    |

  9. The area of two similar triangles ABC and PQR are 25 cm^2, 49cm^2. If ...

    Text Solution

    |

  10. What is the area of an equilateral triangle whose sides is 'a'?

    Text Solution

    |

  11. Tick the correct answer and justify : Sides of two similar triangles a...

    Text Solution

    |

  12. In the figure, find the area of ||gm.

    Text Solution

    |

  13. Two parallelograms are on equal bases andbetween the same parallels. T...

    Text Solution

    |

  14. In figure. D and E are the mid-points o sides. AB, AC respectively ...

    Text Solution

    |

  15. ABCD is a trapezium in which AB||DC, DC = 30 cm and AB = 50 cm. If X a...

    Text Solution

    |

  16. AP||BQ||CR. Prove that ar(AQC) = ar(PBR)

    Text Solution

    |

  17. ABCD is parallelogram. X and Y are the mid-points of BC and CD respect...

    Text Solution

    |

  18. If the medians of a triangleABC intersect at G, show that ar(AGB) = ar...

    Text Solution

    |

  19. PQRS is a ||gm. L is any point on PS and M is any point on QR. Show th...

    Text Solution

    |

  20. PQRS is a ||gm. L is any point on PS and M is any point on QR. Show th...

    Text Solution

    |