document.write( "Question 551333: Find the volume, to the nearest tenth, of a pyramid that is 6 feet tall and whose base is an equilateral triangle with sides each 10 feet long. \n" ); document.write( "

Algebra.Com's Answer #359661 by Earlsdon(6294) $\"\"$ $\"About$

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For a pyramid, the volume is:
\n" ); document.write( " $\"V+=+B%2Ah\"$ where: B = area of the base and h = the height of the pyramid.
\n" ); document.write( "Use Hero's formula to find the area of the triangular base:
\n" ); document.write( " $\"A+=+sqrt%28S%28S-a%29%28S-b%29%28S-c%29%29\"$ where S = semi perimeter of the triangle and a, b, and c are the lengths of the sides of the triangle.
\n" ); document.write( " $\"A+=+sqrt%2815%2815-10%29%2815-10%29%2815-10%29%29\"$
\n" ); document.write( " $\"A+=+sqrt%2815%28125%29%29\"$
\n" ); document.write( " $\"A+=+sqrt%281875%29\"$
\n" ); document.write( " $\"A+=+43.3\"$
\n" ); document.write( " $\"V+=+43.3%286%29\"$
\n" ); document.write( " $\"V+=+259.8\"$ cu.ft.
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