document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1064101>Question 1064101</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the radius of a circular railroad track that will cause a train to change direction by 17.5° in a distance of 181 m.\r<BR>\n" );
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document.write( "Round the answer to the whole. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #679142 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=679142\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "The formula for the arc length is \r<BR>\n" );
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document.write( "S = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%2Aalpha ALIGN=MIDDLE  ALT=\"r%2Aalpha\"   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=alpha ALIGN=MIDDLE  ALT=\"alpha\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the angle in radians.\r<BR>\n" );
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document.write( "So, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=alpha ALIGN=MIDDLE  ALT=\"alpha\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2pi%2A%2817.5%2F360%29 ALIGN=MIDDLE  ALT=\"2pi%2A%2817.5%2F360%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians (! calculate !).\r<BR>\n" );
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document.write( "Then from the equation (*) find r: r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=181%2Falpha ALIGN=MIDDLE  ALT=\"181%2Falpha\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "That's all.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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