A Piece of Tin, Y = 17 Inches on a Side

question 41

Multiple Choice

A piece of tin, y = 17 inches on a side, is to have four equal squares cut from its corners, as in the illustration.If the edges are then to be folded up to make a box with a floor area of 81 square inches,
Find the depth of the box.

• A) 4 in
• B) 8 in
• C) 11 in
• D) 7 in
• E) 9 in

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