document.write( "Question 1159642: Find the surface area of a cone with a radius of 6 and a height of 12 to the nearest whole number. \n" ); document.write( "
Algebra.Com's Answer #782986 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "Total surface area of a cone:
\n" ); document.write( "\"A+=+L+%2B+B\"
\n" ); document.write( "->\"+L\" is lateral surface area of a cone:
\n" ); document.write( "\"L+=+pi%2Ars\".......\"s+\" is slant height->\"s=sqrt%28r%5E2+%2B+h%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( " \"L+=+pi%2Ar%2Asqrt%28r%5E2+%2B+h%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"+B=+pi%2Ar%5E2\" is area of a base\r
\n" ); document.write( "\n" ); document.write( "then\r
\n" ); document.write( "\n" ); document.write( " \"A=+pi%2Ar%2Asqrt%28r%5E2+%2B+h%5E2%29+%2B+pi%2Ar%5E2\"\r
\n" ); document.write( "\n" ); document.write( " \"A=+pi%2A6%2Asqrt%286%5E2+%2B+12%5E2%29+%2B+pi%2A6%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"A=+pi%2A6%2Asqrt%2836%2B+144%29+%2B+pi%2A36\"\r
\n" ); document.write( "\n" ); document.write( "\"A=+pi%2A6%2A13.4+%2B+pi%2A36\"\r
\n" ); document.write( "\n" ); document.write( "\"A=+365.68138487785194\"\r
\n" ); document.write( "\n" ); document.write( "\"A=+366\"\r
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