The Great Pyramid Mystery

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In the ancient city of Giza, a newly discovered pyramid stands at a height of 90 meters. Each side of its square base measures 140 meters. Your task, as the lead mathematician in the archaeological team, is to calculate the volume of this majestic structure. Additionally, determine the total surface area of the pyramid, including its base. Remember, the formula for the volume of a pyramid is 13×base area×height, and for the surface area, you'll need to calculate the area of the base plus the area of the four triangular faces.

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