PE Exam Problem and solution

In this Pass the PE Exam post, I am going to solve a Wetted Perimeter problem that is part of the Water Resources section that you will encounter on the PE Exam. The term wetted perimeter is common in civil engineering, environmental engineering, hydrology, geomorphology, and heat transfer applications; it is associated with the hydraulic diameter or hydraulic radius. The wetted perimeter is defined as the length of the line representing the interface between a fluid and a channel. 

Here’s The Wetted Perimeter Problem:

Here’s The Solution: 

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