Answer Posted / b.nataraj
hight h =sq.root(3)/2a; a=side;
but centroid divides a median in 2:1
radius of cicum circle r1 =2/3h;
radius of incircler2=1/3h;
required ratio= pie.(r2)2:pie.(r1)2
=a2/3:a2/12
=1:1/4
=4:1
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