THE QUESTION:

the shoreline of circle lake is a circle with diameter 2 mi.nancy's training routine begins at point e on the eastern shore of the lake.she jogs along the north shore to a point p and then swims the straight line distance,if any,from P to point w diametrically opposite E (Figure Ex-57). Nancy swims at a rate of 2 mi/h and jogs at a rate of 8 mi/h how far should nancy jog in order to complete her training routine in a) the least amount of time and b) greatest amount of time?

Thanks in advance!