The print version allows teachers to use the problem with their students without giving the students access to the archived answers.
Teachers can use the link to the archived problem to get ideas of student thinking.
In Part II students are applying what they learned in Part I to another situation. Please email us. You want to draw up town boundaries so that each student is closest to his or her own school. Connect point x and point y and draw the perpendicular bisector of line segment xy. Connect point z and point y and draw the perpendicular bisector of line segment zy.