document.write( "Question 1163516: Pyramid TABCD has a 20-cm square base ABCD. The edges that meet at T are 27 cm long. Make a diagram of TABCD, showing F, the point of ABCD closest to T. Find the height TF, to the nearest cm. Find the volume of TABCD, to the nearest cm. \n" ); document.write( "
Algebra.Com's Answer #787630 by greenestamps(13215)\"\" \"About 
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\n" ); document.write( "Point F is the center of the square base -- i.e., the intersection of the diagonals of the base.

\n" ); document.write( "Then the unknown height TF, the length of AF, and the known length of AT form a right triangle.

\n" ); document.write( "Determine the length of AF from the given information and use the Pythagorean Theorem to find the height TF.

\n" ); document.write( "Then use the formula for the volume of a pyramid (\"V+=+%281%2F3%29Bh\") to determine the volume (in cm^3, not in cm).

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