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The Luxor hotel, in Las Vegas, is a square pyramid with lateral faces consisting of black, glassed mirrored panes. The building is 646 feet wide at the base and 350 feet high. How much glass was needed to cover the pyramid?

User Illvart
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2998 feet of glass was needed to cover the pyramid. You add 646 plus 350 and multiply by 3, which is the side length of the pyramid. (Pyramids or triangles have 3 sides.)
User Rvector
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