document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=874874>Question 874874</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the length of a chord that is 15 cm from the center of a circle with a radius of 20 cm. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #527817 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=527817\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Q: Find the length of a chord that is 15 cm from the center of a circle with a radius of 20 cm.<BR>\n" );
document.write( "A:<BR>\n" );
document.write( "In the figure below, a = 15, b = unknown and c = 20<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=reviewermath&illustration_name=circle\"><BR>\n" );
document.write( "Using Pythagorean Theorem,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2+%2B+b%5E2+=+c%5E2 ALIGN=MIDDLE  ALT=\"a%5E2+%2B+b%5E2+=+c%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15%5E2+%2B+b%5E2+=+20%5E2 ALIGN=MIDDLE  ALT=\"15%5E2+%2B+b%5E2+=+20%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+sqrt%2820%5E2+-+15%5E2%29 ALIGN=MIDDLE  ALT=\"b+=+sqrt%2820%5E2+-+15%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2Asqrt%287%29 ALIGN=MIDDLE  ALT=\"5%2Asqrt%287%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > cm <BR>\n" );
document.write( "So the chord is 2b = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%2Asqrt%287%29 ALIGN=MIDDLE  ALT=\"10%2Asqrt%287%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > cm or 26.46 cm (approx) </SPAN>\n" );
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