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Question: 

A person whose eyes are 1.72 m above the floor stands 2.20 m in front of a vertical plane mirror whose bottom edge is 38 cm above the floor, Fig. 23–53. What is the horizontal distance $x$ to the base of the wall supporting the mirror of the nearest point on the floor that can be seen reflected in the mirror?

Problem 4.

Figure 23-53.

Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014. Reprinted by permission of Pearson Education Inc., New York.
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Quick Answer: 

$62 \textrm{ cm}$

Giancoli 7th Edition, Chapter 23, Problem 4

(3:11)