A surveyor needs to measure the​ distance, AB, across the lake. Beginning at​ E, he locates the​ midpoint, C, of and the​ midpoint, D, of . He then measures . What is​ AB? In triangle ABE, point C is on line segment AE and point D is on line segment BE. Line segments BD and DE each have a tick mark. Line segments AC and CE each have two tick marks. Line segment CD is also shown and has length 60 meters. Part of this figure is above a lake. Line segment AB shows the width of the widest part of the lake. Line segment CD is at the left edge of the lake.
60 m