Select the expression that is equivalent to: 4^ sqrt x^4y^8 / 2^12

the meaning of centroid is the point where the medians meet.

in δ ljk

if ln is a perpendicular bisector of jk,

jo is a perpendicular bisector of lk, and

mk is a perpendicular bisector of jl.

then only point p can be the centroid of δ ljk.

the meaning of perpendicular bisector is that it bisects the side as well as make an angle of 90° to the side drawn from vertex opposite to it.

ln, jo, and km all are perpendicular bisector .

so all the three line segment work as medians also.

it means ,point p is the centroid where all the three medians ln,jo and mk meet.