Step 1: Note down the given vertices and calculate the mid points of the sides.

            NOTE: Note down the endpoints (x_1, y_1)and (x_2, y_2) from the given

                    points. And substitute the values into the midpoint formula.

            [FORMULA: The midpoint formula is

                            M = (\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})

            where M is the midpoint of a line segment with endpoints  

            at (x_1, y_1) and(x_2, y_2).

Step 2: Find the slope of the line between the opposite vertex and each midpoint. 

            NOTE: m = \frac{y_2 - y_1}{x_2 - x_1}

Step 3: Calculate the equation of the line containing the median from the vertex and the slope.

              NOTE: y - y_1 = m(x - x_1)

Step 4:Substitute the known values in the line equation and simplify

Step 5: Do this for the other two medians as well.