document.write( "Question 1131059: Find the total surface area of a solid, right circular cone of a height 4 cm and radius 3 cm \n" ); document.write( "
Algebra.Com's Answer #747671 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "A right cone with a base that is a circle.\r
\n" ); document.write( "\n" ); document.write( "\"SA=pi%2Ar%2As\" where \"r\" is radius of the base and \"s\" is slant height\r
\n" ); document.write( "\n" ); document.write( "given:
\n" ); document.write( " a height \"h=4cm\"
\n" ); document.write( "radius \"r=3cm+\"\r
\n" ); document.write( "\n" ); document.write( "find slant height using Pythagorean theorem:\r
\n" ); document.write( "\n" ); document.write( "\"s%5E2=r%5E2%2Bh%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"s%5E2=%283cm%29%5E2%2B%28cm%294%5E2\"
\n" ); document.write( "\"s%5E2=9cm%5E2%2B16cm%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"s%5E2=25cm%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"s=5cm\"\r
\n" ); document.write( "\n" ); document.write( "then,\r
\n" ); document.write( "\n" ); document.write( "\"SA=pi%2A3cm%2A5cm\"
\n" ); document.write( "\"SA=15pi%2Acm%5E2\"\r
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