D E F are the mid points of the sides bc ca ab respectively of a ∆abc,Prove that BDEF is a parallelogram whose area is half that of ∆abc and area of ∆def=1/4(area of ∆abc)

1511022015438-1039714424.jpg Question 7

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P Lvn
Nov. 18, 2017, 9:48 p.m.

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Davneet Singh
Nov. 21, 2017, 7:04 p.m.

Hello

Please check https://www.teachoo.com/1241/449/Ex-9.3--5---D--E-and-F-are-the-mid-points-of-sides-BC--CA/category/Ex-9.3/

 

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