document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=180200>Question 180200</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0078651069/algebrahomeworkh>glencoe Geometry</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> find the radius of a cone given the surface area and slant height. round to the nearest tenth T=359ft^2 , l=15 ft </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #135062 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=135062\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the radius of a cone given the surface area and slant height. round to the nearest tenth T=359ft^2 , l=15 ft<BR>\n" );
document.write( ":<BR>\n" );
document.write( "the surface area formula: SA = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2Ar%2Asqrt%28r%5E2%2Bh%5E2%29 ALIGN=MIDDLE  ALT=\"pi%2Ar%2Asqrt%28r%5E2%2Bh%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Where<BR>\n" );
document.write( "r = radius<BR>\n" );
document.write( "h = altitude <BR>\n" );
document.write( ";<BR>\n" );
document.write( "However we are given the slant height (l):<BR>\n" );
document.write( "l = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28r%5E2%2Bh%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28r%5E2%2Bh%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "so we can just substitute l for that in the formula<BR>\n" );
document.write( "SA = pi * r * l<BR>\n" );
document.write( "so we have:<BR>\n" );
document.write( "pi * r * 15 = 359<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=359%2F%2815%2Api%29 ALIGN=MIDDLE  ALT=\"359%2F%2815%2Api%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = 7.618 ~ 7.6 ft<BR>\n" );
document.write( " </SPAN>\n" );
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