shashwat14
In triangle ADE, AB+BD=AC+CE(because AB=AC & BD=CE adding these two equations) now triangle ADE becomes isosceles triangle with sides AD and AE equal. since DC and BE are medians then medians of an isosceles triangle are equal. hence, CD is equal to BE
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now triangle ADE becomes isosceles triangle with sides AD and AE equal.
since DC and BE are medians then medians of an isosceles triangle are equal. hence, CD is equal to BE