
Home > CALC > Chapter 12 > Lesson 12.2.2 > Problem 12-80
12-80.
Draw a diagram where the d = distance from the dock, which is the height of an isosceles triangle.
Let x = distance the owner has walked.
When the owner has walked 10 ft, by the Pythagorean Theorem, d = √ 175 .
Substitute in the known values and solve for d′.