document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1082990>Question 1082990</A>: <I><SPAN STYLE=\"word-break: break-all;\">  What is the length of the radius of a circle with a central angle measuring 2.5 radians that interceps anark with the length of 15 inches?? Any help please highschool?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #696966 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=696966\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The formula we'll use is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+theta%2Ar ALIGN=MIDDLE  ALT=\"s+=+theta%2Ar\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "where <BR>\n" );
document.write( "s = arc length<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=theta ALIGN=MIDDLE  ALT=\"theta\"   DISABLED_style= \"max-width:90%; height:auto;\" > (greek letter theta) = angle in radians ** see <font color=blue>note</font> below **<BR>\n" );
document.write( "r = radius\r<BR>\n" );
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document.write( "We're given <BR>\n" );
document.write( "s = 15 inches<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=theta+=+2.5 ALIGN=MIDDLE  ALT=\"theta+=+2.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians\r<BR>\n" );
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document.write( "and we want to find r\r<BR>\n" );
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document.write( "<font color=blue>Note</font>: The angle MUST be in radians for this formula to work. If the angle is in degrees, you need to convert to radians first. Or if you want to keep theta in degree mode, you can use the formula <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+%28theta%2F360%29%2A2%2Api%2Ar ALIGN=MIDDLE  ALT=\"s+=+%28theta%2F360%29%2A2%2Api%2Ar\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is a bit more complicated. \r<BR>\n" );
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document.write( "Plug the two given items into the formula and solve for r (divide both sides by 2.5)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+theta%2Ar ALIGN=MIDDLE  ALT=\"s+=+theta%2Ar\"   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=15+=+2.5%2Ar ALIGN=MIDDLE  ALT=\"15+=+2.5%2Ar\"   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=15%2F2.5+=+%282.5%2Ar%29%2F2.5 ALIGN=MIDDLE  ALT=\"15%2F2.5+=+%282.5%2Ar%29%2F2.5\"   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=6+=+r ALIGN=MIDDLE  ALT=\"6+=+r\"   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=r+=+6 ALIGN=MIDDLE  ALT=\"r+=+6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So <font color=red>the radius is 6 inches</font> </SPAN>\n" );
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