document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=918319>Question 918319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 36.900 ft. give the area A of the window in square feet when the width is 7.500 ft. Give the answer to two decimal places.<BR>\n" );
document.write( "I tried multiplying the 7.500 by 2 and subtracting the total from the 36.900. Then I divided that number by two and multiplied the result by 7.500. Can you help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #557047 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=557047\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The window looks like this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28200%2C300%2C-5%2C5%2C-10%2C5%2C%0D%0Arectangle%28-3.75%2C0%2C3.75%2C-8.8%29%2C%0D%0Ared%28arc%280%2C0%2C7.5%2C7.5%2C180%2C360%29%29%2C%0D%0Ared%28arc%280%2C0%2C7.55%2C7.55%2C180%2C360%29%29%2C%0D%0Ared%28arc%280%2C0%2C7.45%2C7.45%2C180%2C360%29%29%2C%0D%0Ared%28line%28-3.75%2C-8.8%2C-3.75%2C0%29%29%2C%0D%0Ared%28line%283.75%2C0%2C3.75%2C-8.8%29%29%2C%0D%0Ared%28line%28-3.75%2C-8.8%2C3.75%2C-8.8%29%29%2C%0D%0Alocate%28-0.9%2C-0.05%2C7.5ft%29%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28perimeter%29 ALIGN=MIDDLE  ALT=\"red%28perimeter%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > is 3 sides of the rectangle (1 width and 2 lengths) plus the half circumference at the top.<BR>\n" );
document.write( "If the width is 7.5 ft, that is also the diameter of the semicircle,<BR>\n" );
document.write( "so the circumference would be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7.5pi ALIGN=MIDDLE  ALT=\"7.5pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > and half a circumference is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7.5pi%2F2=3.75pi ALIGN=MIDDLE  ALT=\"7.5pi%2F2=3.75pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > .<BR>\n" );
document.write( "We have the bottom (the width) and the top (the half circumference), adding up to<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7.5%2B3.75pi ALIGN=MIDDLE  ALT=\"7.5%2B3.75pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > feet.<BR>\n" );
document.write( "The rest of the perimeter is the 2 vertical sides, (2 lengths of the rectangle), so<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Alength%2B7.5%2B3.75pi=39.6 ALIGN=MIDDLE  ALT=\"2%2Alength%2B7.5%2B3.75pi=39.6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In approximate numbers,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Alength%2B7.5%2B11.781=39.6 ALIGN=MIDDLE  ALT=\"2%2Alength%2B7.5%2B11.781=39.6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Alength%2B19.281=39.6 ALIGN=MIDDLE  ALT=\"2%2Alength%2B19.281=39.6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Alength=39.6-19.281 ALIGN=MIDDLE  ALT=\"2%2Alength=39.6-19.281\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Alength=17.619 ALIGN=MIDDLE  ALT=\"2%2Alength=17.619\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=length=17.619%2F2 ALIGN=MIDDLE  ALT=\"length=17.619%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=length=8.8095 ALIGN=MIDDLE  ALT=\"length=8.8095\"   DISABLED_style= \"max-width:90%; height:auto;\" > feet.<BR>\n" );
document.write( " <BR>\n" );
document.write( "The area is the area of the rectangle part plus half of a circle.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8.8095%2A7.5%2B%281%2F2%29%2Api%2A3.75%5E2=66.071%2B22.089%28rounded%29=88.16 ALIGN=MIDDLE  ALT=\"8.8095%2A7.5%2B%281%2F2%29%2Api%2A3.75%5E2=66.071%2B22.089%28rounded%29=88.16\"   DISABLED_style= \"max-width:90%; height:auto;\" > square feet (rounded to 2 decimal places). </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );