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In a triangle A B C median A D is produc...

In a triangle `A B C` median `A D` is produced to `X` such that `A D=D Xdot` Prove that `A B X C` is a parallelogram.

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RD SHARMA ENGLISH-QUADRILATERALS-All Questions
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  14. In a quadrilateral A B C D ,\ C O\ a n d\ D O are the bisectors of /C\...

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  15. Let A B C be an isosceles triangle with A B=A C and let D ,\ E ,\ F ...

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