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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^(@)`

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Knowledge Check

  • If D, E and F are respectively the mid-points of sides BC,CA and Ab of a triangle ABC . If EF = 3 cm, FD = 4 cm and AB = 10 cm, then DE, BC and CA respectively will be equal to :

    A
    6, 8 and 20 cm
    B
    4, 6 and 8 cm
    C
    5, 6 and 8 cm
    D
    10/3, 9 and 12 cm

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