   Chapter 5.4, Problem 20E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

A drawbridge that is 136 ft in length is raised at its midpoint so that the uppermost points are 16 ft apart. How far has each of the midsections been raised?(Hint: Consider the drawing for Exercise 19.) To determine

To Find:

Length of the midsections been raised.

Explanation

Given A drawbridge that is 136 ft. in length is raised at its midpoint so that the uppermost points are 16 ft. apart.

The figure can be redrawn as,

From the given data,

AB=136 ft.

CD=EF=16 ft.

And from the redrawn figure,

AE = FB

AC=12(AB)    =12(136)    =68

And from the figure,

AB=AE+EF+FB

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