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In Figure, `A B C D ,\ A B F E\ a n d\ C D E F` are parallelograms. Prove that `a r( /_\A D E)=a r( /_\B C F)`

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RD SHARMA ENGLISH-AREA OF PARALLELOGRAMS AND TRIANGLES-All Questions
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  15. In triangle A B C ,\ P\ a n d\ Q are respectively the mid-points o...

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