document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=94092>Question 94092</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the circumference of a circle with the area 36pi square centimeters? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #68508 by </B><A HREF=/tutors/aboutme.mpl?userid=praseenakos@yahoo.com><B>praseenakos@yahoo.com(507)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=praseenakos@yahoo.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=praseenakos@yahoo.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=68508\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Question:\r<BR>\n" );
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document.write( "Find the circumference of a circle with the area 36pi square centimeters?\r<BR>\n" );
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document.write( "Answer:\r<BR>\n" );
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document.write( "Area of circle is given by the formula,  A = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pie+%28r%5E2%29 ALIGN=MIDDLE  ALT=\"pie+%28r%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, where A is the area and r is the radius of the circle.\r<BR>\n" );
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document.write( "Here, A = 36 pie\r<BR>\n" );
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document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%28pie%29+=+pie+%28r%5E2%29 ALIGN=MIDDLE  ALT=\"36%28pie%29+=+pie+%28r%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Divide both sides of the  expression by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+pie+ ALIGN=MIDDLE  ALT=\"+pie+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==>  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%28pie%29%2F%28pie%29++=+pie+%28r%5E2%29%2F+%28pie%29 ALIGN=MIDDLE  ALT=\"36%28pie%29%2F%28pie%29++=+pie+%28r%5E2%29%2F+%28pie%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==>  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36++=++r%5E2 ALIGN=MIDDLE  ALT=\"36++=++r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Take square root on both sides...\r<BR>\n" );
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document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sqrt+%2836%29++=+sqrt%28+r%5E2%29 ALIGN=MIDDLE  ALT=\"+sqrt+%2836%29++=+sqrt%28+r%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==>  r = 6 or -6\r<BR>\n" );
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document.write( "Since radius can never be negative, you can take r = 6\r<BR>\n" );
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document.write( "So, radius = 6\r<BR>\n" );
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document.write( "Now circumference of a circle is given by the formula, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%28pie%29+r ALIGN=MIDDLE  ALT=\"+2%28pie%29+r\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So circumference =  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%28pie%29+6 ALIGN=MIDDLE  ALT=\"+2%28pie%29+6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==>  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12%28pie%29++ ALIGN=MIDDLE  ALT=\"+12%28pie%29++\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "       --------------------------------------------\r<BR>\n" );
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document.write( "If you put the approximate value of pie ( its <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.14 ALIGN=MIDDLE  ALT=\"3.14\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=22%2F7 ALIGN=MIDDLE  ALT=\"22%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > you will get\r<BR>\n" );
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document.write( "Circumference =   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2A%283.14%29 ALIGN=MIDDLE  ALT=\"12%2A%283.14%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "That is, circumference =  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=37.68 ALIGN=MIDDLE  ALT=\"37.68\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Hope you found the explanation useful.\r<BR>\n" );
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document.write( "Regards.\r<BR>\n" );
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document.write( "Praseena.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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