document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1013226>Question 1013226</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sphere of diameter 40cm has a cylinder of base radius r cm inscribed within it. Find an expression for teh volume of the cylinder, V(r), in terms of r only. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #629488 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39631)</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=629488\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Cross section through the middle can be a circle and if centered at the Origin for graphing,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2By%5E2=20%5E2 ALIGN=MIDDLE  ALT=\"x%5E2%2By%5E2=20%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x=r and use r, as if a constant, to find y.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Volume of the cylinder will be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Ay%2Api%2Ar%5E2 ALIGN=MIDDLE  ALT=\"2%2Ay%2Api%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >;  you'll need the picture to see this.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2%2By%5E2=400 ALIGN=MIDDLE  ALT=\"r%5E2%2By%5E2=400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=sqrt%28400-r%5E2%29 ALIGN=MIDDLE  ALT=\"y=sqrt%28400-r%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "volume is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2pi%2Asqrt%28400-r%5E2%29r%5E2 ALIGN=MIDDLE  ALT=\"2pi%2Asqrt%28400-r%5E2%29r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >-----answer\r<BR>\n" );
document.write( "\n" );
document.write( "Do not confuse radius of the circle or sphere with the radius of the cylinder. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );