document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=179429>Question 179429</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A= 2prh + 2pr(sqaured) this is the formula for the surface area of circular cylinder. i want to know the height.  p stands for pie/ the r is squared in the second half of the problem\r<BR>\n" );
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document.write( "i got to A-2pr squared = 2prh\r<BR>\n" );
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document.write( "when i divided by 2pr i dont understand why you get h= A/2pr - r \r<BR>\n" );
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document.write( "wouldn't the 2pr cancel each other out. please help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #134361 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=134361\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A= 2prh + 2pr^2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+2%2Api%2Arh+%2B+2%2Api%2Ar%5E2 ALIGN=MIDDLE  ALT=\"A+=+2%2Api%2Arh+%2B+2%2Api%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Api%2Arh+=+A+-+2%2Api%2Ar%5E2 ALIGN=MIDDLE  ALT=\"2%2Api%2Arh+=+A+-+2%2Api%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h+=+%28A+-+2%2Api%2Ar%5E2%29%2F%282%2Api%2Ar%29 ALIGN=MIDDLE  ALT=\"h+=+%28A+-+2%2Api%2Ar%5E2%29%2F%282%2Api%2Ar%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Nothing cancels.<BR>\n" );
document.write( "You can make it:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h+=+A%2F%282pi%2Ar%29+-+r ALIGN=MIDDLE  ALT=\"h+=+A%2F%282pi%2Ar%29+-+r\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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