document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=482513>Question 482513</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sector has an area of 50cm^2 and an arc length of 4 cm. Find its radius and central angle in radians. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #330619 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=330619\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A sector has an area of 50cm^2 and an arc length of 4 cm. Find its radius and central angle in radians.<BR>\n" );
document.write( "**<BR>\n" );
document.write( "x=central angle<BR>\n" );
document.write( "Arc length,s=rx=4<BR>\n" );
document.write( "x=4/r<BR>\n" );
document.write( "Area=1/2r^2*x=50<BR>\n" );
document.write( "r^2*x=100<BR>\n" );
document.write( "r^2*4/r=100<BR>\n" );
document.write( "4r=100<BR>\n" );
document.write( "r=25cm<BR>\n" );
document.write( "x=4/r=4/25 radians </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );