The depth and widths of a rectangular channel section are y and B respectively, determine the economical perimeter of the section.

The depth and widths of a rectangular channel section are y and B resp

1.	The depth and widths of a rectangular channel section are y and B respectively, determine the economical perimeter of the section.
A.	y
B.	2y
C.	3y
D.	4y
Answer» E.

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The depth and widths of a rectangular channel section are y and B respectively, determine the economical perimeter of the section.

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