To measure the distance (DC) across a pond, a surveyor takes points A and B so that AB is parallel to DC. If AB = 60 feet, EB = 48 feet, and ED = 80 feet, find DC.
Explanation
Let x = DC. Since Triangle ABE is similar to Triangle CED. the lengths of their corresponding sides are in proportion. x / 60 = 80 / 48 48x = 80(60) = 4800 x = 4800 / 48= 100 ft.