According to U.S. postal regulations, the girth plus the length of a parcel sent by mail may not exceed 108 inches, where by "girth" we mean the perimeter of the smallest end. What is the largest possible volume of a rectangular parcel with a square end that can be sent by mail? Such a package is shown below, with x and y measured in inches. Assume y>x
. What are the dimensions of the package of largest volume?
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A postcard or post card is a rectangular piece of thick paper or thin cardboard intended for writing and mailing without an envelope. ... While a postcard is usually printed by a private company, individual or organization, a postal card is issued by the relevant postal authority.
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