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## Please solve question no 9 with proper explanation

### CBSE X Mathematics

Asked by tultuldutta58 8th January 2018 3:02 AM

## D,E and F are the mid-points of the sides BC,CA and AB respectively of triangle ABC.Prove that: (1)BDEF is a parallelogram. (2)area of triangle BDEF is half the area of triangle ABC.

Asked by 151434255575758 10th February 2018 4:11 PM

### CBSE X Mathematics

Asked by sucharitasahoo1 18th February 2018 9:22 AM

## pls explain

Asked by gpnkumar0 28th February 2018 10:09 PM

## In three line segments OA, OB and OC,points L,M,Nrespectively are so shosen that LM ll AB and MN ll BC but neither of L, M nor of A,B,C are collinear. Show that LN ll AC.

Asked by gpnkumar0 7th March 2018 9:37 PM

## Q. 6

Asked by Rayeesa 4th June 2018 9:57 PM

## if a line intersects AB &AC of a traingleABC at D &E respectively and the line is parallel to BC prove that BD/AB=EC/AC

Asked by priyasounder87 21st June 2018 9:07 PM