Home
Class 10
MATHS
D, E and F are respectively the mid -poi...

D, E and F are respectively the mid -points of the sides BC, CA and AB of a `triangleABC` .Show that (i) BDEF is a parallelogram

A

`120^(@)`

B

`110^(@)`

C

`135^(@)`

D

`130^(@)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • NTSE 2019 -20

    OSWAL PUBLICATION|Exercise Triangles Stage -2|1 Videos

  • NTSE 2019 -20

    OSWAL PUBLICATION|Exercise Circles Stage -1|2 Videos

  • NTSE 2019 -20

    OSWAL PUBLICATION|Exercise Coordinate Geometry Stage -2|1 Videos

  • NEW TYPOLOGIES INTRODUCED BY CBSE FOR BOARD 2021-22 EXAM

    OSWAL PUBLICATION|Exercise UNIT-VII STATISTICS AND PROBABILITY (STATISTICS) (SELF ASSESSMENT)|2 Videos

  • OLYMPIAD 2019-20

    OSWAL PUBLICATION|Exercise 15. Probability |1 Videos

Similar Questions

Explore conceptually related problems

D, E and F are respectively the mid-points of the sides BC, CA and AB of aDeltaA B C . Show that (i) BDEF is a parallelogram. (ii) a r" "(D E F)=1/4a r" "(A B C) (iii) a r" "(B D E F)=1/2a r" "(A B C)

D,E and F are respectively the mid-points of the sides BC,CA and AB of a /_ABC. Show that (i) BDEF is a parallelogram

D, E and F are the mid-points of the sides BC, CA and AB of a triangle ABC. Show that BDEF is a parallelogram

D, E and F are respectively the mid-points of the sides BC, CA and AB of a DeltaABC . Show that ar(BDEF) = 1/2ar(triangleABC)

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

In the adjoining figure D, E and F are the mid-points of the sides BC, CA and AB respectively of Delta ABC . Prove that: (i) square BDEF is a parallelogram (ii) area of Delta DEF = (1)/(4) xx " area of " Delta ABC (iii) area of square BDEF = (1)/(2) xx " area of " Delta ABC

In Figure,D,E and F are,respectively the mid-points of sides BC,CA and AB of an equulateral triangle ABC. Prove that DEF is also an equilateral triangle.

D, E and F are the mid-points of the sides BC, CA and AB, respectively of and equilateral Delta ABC. Show that Delta DEF is also an equilateral triangle.

D, E, F are the midpoints of the sides BC, CA and AB respectively of triangle ABC. Prove that (i) BDEF is a ||gm, (ii) ar(triangleDEF)=(1)/(4) ar(triangleABC) and (iii) ar("||gm BDEF") = (1)/(2)ar(triangleABC)