document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182421>Question 182421</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780618250202/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A car's rear windshield wiper rotates 120 degree's, find the area covered by the wiper. the wiperblade length is 25 and the width of the covered area is 14. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136912 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=136912\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A car's rear windshield wiper rotates 120 degree's, find the area covered by the wiper. the wiperblade length is 25 and the width of the covered area is 14.<BR>\n" );
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document.write( "A circle with radius 25 has area (pi)625<BR>\n" );
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document.write( "A circle with radius (25-14) = 11 has area (pi)121<BR>\n" );
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document.write( "If the wiperblade covered 360 degrees the covered area <BR>\n" );
document.write( "would be 625(pi)-121(pi) = 504(pi) sq units<BR>\n" );
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document.write( "Since the blade sweeps only 120 degrees the area is <BR>\n" );
document.write( "(1/3)504(pi) = 168(pi)sq units<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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