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Examples for Practice<br />
examples 1 and 2 on pp. 2-3 in your notes from Lesson 18.<br />
Example 1: The Great Pyramid of Egypt is 410 feet high. Its base<br />
is a square 755 feet by 755 feet.<br />
Goal: find the volume of this solid.<br />
Need: find the cross-sectional area at any height h.<br />
(cross-sections are squares, we need to know the length of the side<br />
of the pyramid at each height h.
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