Maharashtra State BoardSSC (English Medium) 9th Standard
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In the Given Figure, G is the Point of Concurrence of Medians of δ Def. Take Point H on Ray Dg Such that D-g-h and Dg = Gh, Then Prove that - Geometry


In the given figure, G is the point of concurrence of medians of Δ DEF. Take point H on ray DG such that D-G-H and DG = GH, then prove that `square` GEHF is a parallelogram.

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G is the point of concurrence of the medians of Δ DEF.

Let the point where the median divides EF into two equal parts be A. 
Thus, EA = AF.                     .....(1)
we know that the point of concurrence of the medians, divides each median in the ratio 2 : 1.
So, let DG = 2x  and GA = x
Given that DG = GH
So, GA = AH = x
Thus, point A dividess EF and GH into two equal parts. 

Hence , `square`GEHF is a parallelogram as the diagonals EF and GH bisect each other.

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Balbharati Mathematics 2 Geometry 9th Standard Maharashtra State Board
Chapter 5 Quadrilaterals
Practice Set 5.2 | Q 3 | Page 67
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