Answer:
42.30 m
Explanation:
Let's take the distance between the campsite, AB, to be "x".
Since the two triangles are similar, their corresponding side lengths are proportional. Therefore:
47/x = 82/73.8
Cross multiply
x*82 = 47*73.8
x = (47*73.8)/82
x = 3,468.6/82
x = AB = 42.30 m (nearest hundredth)