document.write( "Question 1104613: How many 2 foot wide by 2 foot long by 6 inch thick granite slabs would be needed to build a 77 foot wide by 77 foot by 28 feet high pyramid? Thank you for your time! \n" ); document.write( "

Algebra.Com's Answer #719375 by greenestamps(13200) $\"\"$ $\"About$

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\n" ); document.write( "The calculations by the other tutor indicate that he is building a box shaped figure with a square base, not a pyramid with a square base.
\n" ); document.write( "The volume of his box shape is $\"77%2A77%2A28+=+166012\"$ .
\n" ); document.write( "The volume of a pyramid with a square base 77 feet on a side and 28 feet high is $\"%281%2F3%29%2A77%2A77%2A28+=+166012%2F3+=+55337.333\"$

\n" ); document.write( "Since each block is 2 cubic feet (2x2x0.5), the number of blocks you need is APPROXIMATELY $\"55337.333%2F2+=+27669\"$ .

\n" ); document.write( "But, in fact, you can't exactly build the pyramid with rectangular blocks; so that answer is only an approximation. \n" ); document.write( "

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