document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=433993>Question 433993</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The surface area of a cylinder is 200 cm^2.  The diameter is equal to the height.  Find the radius. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #300789 by </B><A HREF=/tutors/aboutme.mpl?userid=Gogonati><B>Gogonati(855)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Gogonati><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=Gogonati><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=300789\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> As we know the surface area of cylinder is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28pi%29%2AD%2AH ALIGN=MIDDLE  ALT=\"%28pi%29%2AD%2AH\"   DISABLED_style= \"max-width:90%; height:auto;\" >, where D is the \r<BR>\n" );
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document.write( "diameter, and H is the height of cylinder, since H=D we can write:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200=%28pi%29%2AD%5E2 ALIGN=MIDDLE  ALT=\"200=%28pi%29%2AD%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, solving this equation we find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D=sqrt%28200%2F%28pi%29%29 ALIGN=MIDDLE  ALT=\"D=sqrt%28200%2F%28pi%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and \r<BR>\n" );
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document.write( "the radius <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=D%2F2 ALIGN=MIDDLE  ALT=\"R=D%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=%281%2F2%29%2Asqrt%28200%2F%28pi%29%29 ALIGN=MIDDLE  ALT=\"R=%281%2F2%29%2Asqrt%28200%2F%28pi%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, rationalizing we find,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=5%2Asqrt%282%29%2F%28sqrt%28pi%29%29=5%2Asqrt%282%2Api%29%2F%28pi%29 ALIGN=MIDDLE  ALT=\"R=5%2Asqrt%282%29%2F%28sqrt%28pi%29%29=5%2Asqrt%282%2Api%29%2F%28pi%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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