If `m_(a),m_(b),m_(c)` are lengths of medians through the vertices `A,B ,C` of triangle `ABC` respectively, then length of side `C=`

In DeltaABC , if m_(a),m_(b),m_(c) denote the lengths of the medians drawn to the sides a, b, c respectively and Delta is the area of the DeltaABC with a=10, c=6" and "m_(b)=7 then

If a, b,c are the lengths of the sides of triangle , then

If the length of medians A A_(1),BB_(1) and C C_(1) of triangle ABC are m_(a),m_(b) and m_(c) respectively, then:

In triangle ABC m_(1),m_(2),m_(3) are the lenghts of the medians through A,B and C respectively . If C=(pi)/(2) , then (m_(1)^(2)+m_(2)^(2))/(m_(3)^(2)) =