document.write( "Question 397970: if the radius of a cone is 4 and the hight is 12 what is the surface area \n" ); document.write( "

Algebra.Com's Answer #282063 by Tatiana_Stebko(1539) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"R=4%2C+h=12\"$
\n" ); document.write( " $\"S=S1%2BS2\"$
\n" ); document.write( " $\"S1=pi%2AR%5E2\"$ , $\"S1=pi%2A4%5E2=50.27\"$
\n" ); document.write( " $\"S2=pi%2AR%2AL\"$
\n" ); document.write( " $\"L=sqrt%28R%5E2%2Bh%5E2%29\"$ , $\"L=sqrt%284%5E2%2B12%5E2%29=sqrt%28160%29=12.65\"$
\n" ); document.write( " $\"S2=pi%2AR%2AL=pi%2A4%2A12.65=158.95\"$
\n" ); document.write( " $\"S=S1%2BS2=50.27%2B158.95=209.22\"$
\n" ); document.write( " $\"S=209.22\"$
\n" ); document.write( " \n" ); document.write( "

\n" );