document.write( "Question 1142672: How do I get the surface area of a regular tetrahedron with edge length 5cm? \n" ); document.write( "

Algebra.Com's Answer #763380 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+A%5Bf%5D+=+sqrt%283%29%2A%28a%2F2%29%5E2+\"$ = area of a face where $\"+a+=+5+\"$ cm
\n" ); document.write( " $\"+A%5Bf%5D+=+%28+sqrt%283%29%2F4+%29%2A5%5E2+\"$
\n" ); document.write( " $\"+A%5Bt%5D+=+4%2A%281%2F4%29%2Asqrt%283%29%2A25+\"$
\n" ); document.write( " $\"+A%5Bt%5D+=+25%2Asqrt%283%29+\"$ cm2 = area of tetrahedron
\n" ); document.write( "check the math\r
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