Two boats - Boat A and Boat B - are anchored a distance of 20 meters apart. The incoming water waves force the boats to oscillate up and down, making one complete cycle every 15 seconds. When Boat A is at its peak, Boat B is at its low point and there is one crest between the two boats. The vertical distance between Boat A and Boat B at their extreme is 14 meters.
(A) Determine the wavelength of the wave in m to the nearest 0.1 m.