[求助]为什么得不出答案？？
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;">按照图画出所示图形，求剖面线区域的面积。（<font face="Times New Roman">B</font>）<font face="Times New Roman">(</font>用<font face="Times New Roman">AutoCAD2004</font>画！！）</p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"><img src="file:///D:/Document%20And%20Settings2/yh/Desktop/word/media/image3.png" border="0" alt=""/></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman">A</font>、<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="True" sourcevalue="106.3382" unitname="C"><font face="Times New Roman">106.3382<span style="mso-spacerun: yes;"> </font></span></chmetcnv></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="True" sourcevalue="106.3382" unitname="C"><font face="Times New Roman"><span style="mso-spacerun: yes;"></font></span></chmetcnv><font face="Times New Roman">B</font>、<font face="Times New Roman">106.3823<span style="mso-spacerun: yes;"> </font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman">C<span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、<font face="Times New Roman">106.3283<p></p></font></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman">D<span style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、<font face="Times New Roman">106.3832</font></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="Times New Roman"><p></p></font> </p>
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