document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=286443>Question 286443</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Circle has an area of 25 cm2, what is its circumference to the nearest tenth of a centimeter?\r<BR>\n" );
document.write( "\n" );
document.write( "I know tha  answer is 17.7, but do you just guess at what the radius might be and plug it into the pie r2 formula to see what works? I have another the same way on volume of a sphere. \r<BR>\n" );
document.write( "\n" );
document.write( "Determine volume of a sphere to nearest cm if surface area is 113 cm2:\r<BR>\n" );
document.write( "\n" );
document.write( "Answer is 113 cm3 but again do you just guess at the numbers and plug them into see what works? Never had to do it ths way and my middle grades integrated study guide does not explain. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #207755 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=207755\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Circle has an area of 25 cm2,<BR>\n" );
document.write( " what is its circumference to the nearest tenth of a centimeter? <BR>\n" );
document.write( ":<BR>\n" );
document.write( "Find r:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2Ar%5E2 ALIGN=MIDDLE  ALT=\"pi%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 25<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2 ALIGN=MIDDLE  ALT=\"r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25%2Fpi ALIGN=MIDDLE  ALT=\"25%2Fpi\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2825%2Fpi%29 ALIGN=MIDDLE  ALT=\"sqrt%2825%2Fpi%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use a calc<BR>\n" );
document.write( "r = 2.821<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Find the circumference<BR>\n" );
document.write( "c = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Api%2A2.821 ALIGN=MIDDLE  ALT=\"2%2Api%2A2.821\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "c = 17.72 cm<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Determine volume of a sphere to nearest cm if surface area is 113 cm2: <BR>\n" );
document.write( "Find r using the Surface area formula:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Api%2Ar%5E2 ALIGN=MIDDLE  ALT=\"4%2Api%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 113<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2 ALIGN=MIDDLE  ALT=\"r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=113%2F%284pi%29 ALIGN=MIDDLE  ALT=\"113%2F%284pi%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Using a calc<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28113%2F%284pi%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28113%2F%284pi%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = 2.9987 ~ 3<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Find volume<BR>\n" );
document.write( "v = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2F3%29pi%2Ar%5E3 ALIGN=MIDDLE  ALT=\"%284%2F3%29pi%2Ar%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "v = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2F3%29pi%2A3%5E3 ALIGN=MIDDLE  ALT=\"%284%2F3%29pi%2A3%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "v = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2F3%29pi%2A27 ALIGN=MIDDLE  ALT=\"%284%2F3%29pi%2A27\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "using a calc<BR>\n" );
document.write( "v = 113.1 cu/cm<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );