3. An open box is formed by cutting equal squares out of the corners of a rectangular piece of cardboard 8cm by 5cm and then folding up the sides. Find the altitude of the box if its total surface area is 31 sq. cm.

3. An open box is formed by cutting equal squares out of the corners of a rectangular piece of cardboard 8cm by 5cm and then folding up the sides. Find the altitude of the box if its total surface area is 31 sq. cm.

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter9: Surfaces And Solids

Section9.1: Prisms, Area And Volume

Problem 39E: Kristine creates an open box by cutting congruent squares from the four corners of a square piece of...

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3. An open box is formed by cutting equal squares out of the corners of a rectangular
piece of cardboard 8cm by 5cm and then folding up the sides. Find the altitude of the
box if its total surface area is 31 sq. cm.

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