Show me the steps to

Write a method called centroid that takes one formal parameter of type OUPolygon and returns the centroid of the actual parameter as a Point.

Use a for$-$each loop to access each of three different polygon$$s points.

Accumulate the total of the x values and the total of the y values of the polygon$$s points.

divide each by the number of points to find their means.

Return a Point object whose x and y coordinates are integer approximations of the mean x and y values in the polygon poly