document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=896458>Question 896458</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A thick-walled metal pipe of length 20 cm has an inside diameter of 2.0 cm and an outside diameter of 2.4 cm.  What is the total surface area of the pipe, counting the ends in meters squared?<BR>\n" );
document.write( "Answer:  279 <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #543528 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=543528\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Look at the ends, first.  Each end is based on a circle, and the area of the inner circle is absent.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OuterCircle-InnerCircle=EndArea ALIGN=MIDDLE  ALT=\"OuterCircle-InnerCircle=EndArea\"   DISABLED_style= \"max-width:90%; height:auto;\" > for 1 end.\r<BR>\n" );
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document.write( "Inner Diameter, 2.0 cm, radius 1.0 cm.<BR>\n" );
document.write( "Outer Diameter, 2.4 cm, radius 1.2 cm.\r<BR>\n" );
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document.write( "The pipe has TWO of these ends.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%28pi%2A1.2%5E2-pi%2A1.0%5E2%29 ALIGN=MIDDLE  ALT=\"2%28pi%2A1.2%5E2-pi%2A1.0%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2pi%281.2%5E2-1.0%5E2%29 ALIGN=MIDDLE  ALT=\"2pi%281.2%5E2-1.0%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.88pi ALIGN=MIDDLE  ALT=\"0.88pi\"   DISABLED_style= \"max-width:90%; height:auto;\" >--------total of the ends.\r<BR>\n" );
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document.write( "Inner Surface:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2A%282%2A1%2Api%29=40pi ALIGN=MIDDLE  ALT=\"20%2A%282%2A1%2Api%29=40pi\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Outer Surface:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2A%282%2A1.2%2Api%29=48pi ALIGN=MIDDLE  ALT=\"20%2A%282%2A1.2%2Api%29=48pi\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "ALL of surface area for this pipe:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.88%2B40%2B48%29%28pi%29 ALIGN=MIDDLE  ALT=\"%280.88%2B40%2B48%29%28pi%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > square centimeters.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2888.88%28pi%29%29 ALIGN=MIDDLE  ALT=\"highlight%2888.88%28pi%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > square centimeters.<BR>\n" );
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