<html xmlns:mso="urn:schemas-microsoft-com:office:office" xmlns:msdt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882">  <head> <meta http-equiv="Content-Type" content="text/html; charset=windows-1252"> <meta name="GENERATOR" content="Microsoft FrontPage 4.0"> <meta name="ProgId" content="FrontPage.Editor.Document"> <title>Le carr</title>  <!--[if gte mso 9]><xml> <mso:CustomDocumentProperties> <mso:Categories msdt:dt="string">fiche</mso:Categories> </mso:CustomDocumentProperties> </xml><![endif]--> <meta http-equiv="Page-Enter" content="revealTrans(Duration=3.0,Transition=23)"> <meta http-equiv="Page-Exit" content="revealTrans(Duration=1.0,Transition=23)"> <meta name="Microsoft Theme" content="blitz 011"> <meta name="Microsoft Border" content="tl, default"> </head>  <body background="../_themes/blitz/btztilea.gif" bgcolor="#FFFFFF" text="#000000" link="#333399" vlink="#336666" alink="#CC9933"><!--msnavigation--><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td><!--mstheme--><font face="Verdana, Arial, Helvetica">  <p align="center"><A HREF=http://www.hit-parade.com/hp.asp?site=a111468 TARGET=_top><IMG SRC=http://loga.hit-parade.com/logohp1.gif?site=a111468 ALT="Hit-Parade" BORDER=0></A> <script language="JavaScript1.1"> function mp3clic()  { 		 		a="http://www.chez.com/exomath/telechargement.htm" 		open(a,"n","hotkeys=yes,resizable=no,scrollbars=no,status=no,toolbar=no,top=200,left=200, height=200, width=300"); 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} // --></script><a href="fiche_angles.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav9'].src=MSFPnav9h.src" onmouseout="if(MSFPhover) document['MSFPnav9'].src=MSFPnav9n.src"><img src="_derived/fiche_angles.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Les angles" name="MSFPnav9"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav10n=MSFPpreload("_derived/fiche_triangles.htm_cmp_blitz010_vbtn.gif"); MSFPnav10h=MSFPpreload("_derived/fiche_triangles.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_triangles.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav10'].src=MSFPnav10h.src" onmouseout="if(MSFPhover) document['MSFPnav10'].src=MSFPnav10n.src"><img src="_derived/fiche_triangles.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Les triangles" name="MSFPnav10"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav11n=MSFPpreload("_derived/fiche_trianglerectangle.htm_cmp_blitz010_vbtn.gif"); 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MSFPnav13h=MSFPpreload("_derived/fiche_trapeze.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_trapeze.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav13'].src=MSFPnav13h.src" onmouseout="if(MSFPhover) document['MSFPnav13'].src=MSFPnav13n.src"><img src="_derived/fiche_trapeze.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Le trapze" name="MSFPnav13"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav14n=MSFPpreload("_derived/fiche_parallelogramme.htm_cmp_blitz010_vbtn.gif"); MSFPnav14h=MSFPpreload("_derived/fiche_parallelogramme.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_parallelogramme.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav14'].src=MSFPnav14h.src" onmouseout="if(MSFPhover) document['MSFPnav14'].src=MSFPnav14n.src"><img src="_derived/fiche_parallelogramme.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Paralllogramme" name="MSFPnav14"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav15n=MSFPpreload("_derived/fiche_rectangle.htm_cmp_blitz010_vbtn.gif"); MSFPnav15h=MSFPpreload("_derived/fiche_rectangle.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_rectangle.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav15'].src=MSFPnav15h.src" onmouseout="if(MSFPhover) document['MSFPnav15'].src=MSFPnav15n.src"><img src="_derived/fiche_rectangle.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Le rectangle" name="MSFPnav15"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav16n=MSFPpreload("_derived/fiche_losange.htm_cmp_blitz010_vbtn.gif"); MSFPnav16h=MSFPpreload("_derived/fiche_losange.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_losange.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav16'].src=MSFPnav16h.src" onmouseout="if(MSFPhover) document['MSFPnav16'].src=MSFPnav16n.src"><img src="_derived/fiche_losange.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Le losange" name="MSFPnav16"></a><br><img src="_derived/fiche_carre.htm_cmp_blitz010_vbtn_p.gif" width="140" height="40" border="0" alt="Le carr"><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav17n=MSFPpreload("_derived/fiche_polygone.htm_cmp_blitz010_vbtn.gif"); MSFPnav17h=MSFPpreload("_derived/fiche_polygone.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_polygone.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav17'].src=MSFPnav17h.src" onmouseout="if(MSFPhover) document['MSFPnav17'].src=MSFPnav17n.src"><img src="_derived/fiche_polygone.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Les polygones" name="MSFPnav17"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav18n=MSFPpreload("_derived/fiche_volumes.htm_cmp_blitz010_vbtn.gif"); MSFPnav18h=MSFPpreload("_derived/fiche_volumes.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_volumes.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav18'].src=MSFPnav18h.src" onmouseout="if(MSFPhover) document['MSFPnav18'].src=MSFPnav18n.src"><img src="_derived/fiche_volumes.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Volumes" name="MSFPnav18"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav19n=MSFPpreload("_derived/fiche_section.htm_cmp_blitz010_vbtn.gif"); MSFPnav19h=MSFPpreload("_derived/fiche_section.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_section.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav19'].src=MSFPnav19h.src" onmouseout="if(MSFPhover) document['MSFPnav19'].src=MSFPnav19n.src"><img src="_derived/fiche_section.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Sections de solides" name="MSFPnav19"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav20n=MSFPpreload("_derived/fiche_calcullitteral.htm_cmp_blitz010_vbtn.gif"); MSFPnav20h=MSFPpreload("_derived/fiche_calcullitteral.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_calcullitteral.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav20'].src=MSFPnav20h.src" onmouseout="if(MSFPhover) document['MSFPnav20'].src=MSFPnav20n.src"><img src="_derived/fiche_calcullitteral.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Calcul littral" name="MSFPnav20"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav21n=MSFPpreload("_derived/fiche_equation.htm_cmp_blitz010_vbtn.gif"); MSFPnav21h=MSFPpreload("_derived/fiche_equation.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_equation.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav21'].src=MSFPnav21h.src" onmouseout="if(MSFPhover) document['MSFPnav21'].src=MSFPnav21n.src"><img src="_derived/fiche_equation.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Les quations" name="MSFPnav21"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav22n=MSFPpreload("_derived/fiche_inequation.htm_cmp_blitz010_vbtn.gif"); MSFPnav22h=MSFPpreload("_derived/fiche_inequation.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_inequation.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav22'].src=MSFPnav22h.src" onmouseout="if(MSFPhover) document['MSFPnav22'].src=MSFPnav22n.src"><img src="_derived/fiche_inequation.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Encadrements, inquations" name="MSFPnav22"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav23n=MSFPpreload("_derived/fiche_fraction.htm_cmp_blitz010_vbtn.gif"); MSFPnav23h=MSFPpreload("_derived/fiche_fraction.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_fraction.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav23'].src=MSFPnav23h.src" onmouseout="if(MSFPhover) document['MSFPnav23'].src=MSFPnav23n.src"><img src="_derived/fiche_fraction.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Les fractions" name="MSFPnav23"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav24n=MSFPpreload("_derived/fiche_puissances.htm_cmp_blitz010_vbtn.gif"); MSFPnav24h=MSFPpreload("_derived/fiche_puissances.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_puissances.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav24'].src=MSFPnav24h.src" onmouseout="if(MSFPhover) document['MSFPnav24'].src=MSFPnav24n.src"><img src="_derived/fiche_puissances.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Puissances" name="MSFPnav24"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav25n=MSFPpreload("_derived/fiche_racine.htm_cmp_blitz010_vbtn.gif"); MSFPnav25h=MSFPpreload("_derived/fiche_racine.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_racine.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav25'].src=MSFPnav25h.src" onmouseout="if(MSFPhover) document['MSFPnav25'].src=MSFPnav25n.src"><img src="_derived/fiche_racine.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Racine carre" name="MSFPnav25"></a><br><script language="JavaScript"><!-- if(MSFPhover) { MSFPnav26n=MSFPpreload("_derived/fiche_affine.htm_cmp_blitz010_vbtn.gif"); MSFPnav26h=MSFPpreload("_derived/fiche_affine.htm_cmp_blitz010_vbtn_a.gif"); } // --></script><a href="fiche_affine.htm" language="JavaScript" onmouseover="if(MSFPhover) document['MSFPnav26'].src=MSFPnav26h.src" onmouseout="if(MSFPhover) document['MSFPnav26'].src=MSFPnav26n.src"><img src="_derived/fiche_affine.htm_cmp_blitz010_vbtn.gif" width="140" height="40" border="0" alt="Fonctions affines" name="MSFPnav26"></a> <p align="center"><IMG SRC="../petitexomath.gif" BORDER=0 ALIGN="middle" width="100" height="100" ></p>  <!--mstheme--></font></td><td valign="top" width="24"></td><!--msnavigation--><td valign="top"><!--mstheme--><font face="Verdana, Arial, Helvetica">  <p><font face="Comic Sans MS" color="#000055">Pour le carr, il faut distinguer deux types de proprits :</font></p> <p><font face="Comic Sans MS" color="#000055">&nbsp;&nbsp;&nbsp; - on sait que l'on a un carr et on a alors certaines proprits.</font></p> <p><font face="Comic Sans MS" color="#000055">&nbsp;&nbsp;&nbsp; - on ne sait pas que le quadrilatre est un carr et  partir d'informations complmentaires on veut montrer que le quadrilatre est un carr.</font></p> <p style="margin: 0"><font face="Comic Sans MS" color="#FF0000">Dfinition : Un quadrilatre qui a ses 4 cts de mme mesure et 3 angles droits (4 en fait) est un carr.</font></p> <p style="margin: 0" align="center"><img border="0" src="carre11.gif" width="81" height="73"></p> <p style="margin: 0" align="center">&nbsp;</p> <p style="margin: 0" align="left"><font color="#000055" face="Comic Sans MS">Les proprits du carr :</font></p> <!--mstheme--></font><table border="1" width="100%" height="100%" bordercolordark="#003399" bordercolorlight="#336699">   <tr>     <td><!--mstheme--><font face="Verdana, Arial, Helvetica"><font face="Comic Sans MS" color="#FF0000">Le carr a ses diagonales de<img border="0" src="carrediagonale.gif" align="right" width="82" height="76">       mme longueur, qui se coupent en leur milieu et qui sont       perpendiculaires.</font><!--mstheme--></font></td>     <td><!--mstheme--><font face="Verdana, Arial, Helvetica"><font face="Comic Sans MS" color="#FF0000">Le carr est un rectangle.       (car il a 4 angles droits !)</font><!--mstheme--></font></td>   </tr>   <tr>     <td><!--mstheme--><font face="Verdana, Arial, Helvetica"><font face="Comic Sans MS" color="#FF0000">Le carr a ses cts       opposs 2  2 parallles.</font><!--mstheme--></font></td>     <td><!--mstheme--><font face="Verdana, Arial, Helvetica"><font face="Comic Sans MS" color="#FF0000">Le carr est un losange.       (car il a ses 4 cts gaux !)</font><!--mstheme--></font></td>   </tr>   <tr>     <td><!--mstheme--><font face="Verdana, Arial, Helvetica"><font face="Comic Sans MS" color="#FF0000">&nbsp;Le carr est un       paralllogramme. (car ses cts opposs sont parallles)</font><!--mstheme--></font></td>     <td><!--mstheme--><font face="Verdana, Arial, Helvetica">&nbsp;<!--mstheme--></font></td>   </tr> </table><!--mstheme--><font face="Verdana, Arial, Helvetica"> <p>&nbsp;</p> <p><font face="Comic Sans MS" color="#000055">Pour montrer que l'on a un carr :</font></p> <!--mstheme--></font><table border="1" width="100%" bordercolordark="#003399" bordercolorlight="#336699">   <tr>     <td width="50%"><!--mstheme--><font face="Verdana, Arial, Helvetica"><font color="#FF0000" face="Comic Sans MS">Un quadrilatre       qui<img border="0" src="diagonalecarre.gif" align="right" width="108" height="58"> a ses       diagonales perpendiculaires, de mme longueur qui se coupent en leur       milieu est un carr. </font><!--mstheme--></font></td>     <td width="50%"><!--mstheme--><font face="Verdana, Arial, Helvetica"><font color="#FF0000" face="Comic Sans MS">Un rectangle qui       a ses diagonales perpendiculaires est un carr. </font><!--mstheme--></font></td>   </tr>   <tr>     <td width="50%"><!--mstheme--><font face="Verdana, Arial, Helvetica"><font color="#FF0000" face="Comic Sans MS">Un losange qui a       ses diagonales de mme longueur est un carr.</font><!--mstheme--></font></td>     <td width="50%"><!--mstheme--><font face="Verdana, Arial, Helvetica"><font color="#FF0000" face="Comic Sans MS">Un       paralllogramme qui a ses diagonales perpendiculaires qui sont de mme       longueur est un carr.</font><!--mstheme--></font></td>   </tr> </table><!--mstheme--><font face="Verdana, Arial, Helvetica"> <p>&nbsp;</p> <p><font face="Comic Sans MS" color="#000055">Le pritre du carr : P<sub>carr</sub>=4 x c = 4 c </font></p> <p><font face="Comic Sans MS" color="#000055">La surface du carr : A<sub>carr</sub>= c x c = c</font></p> <p align="center"><img border="0" src="surfacecarre.gif" width="117" height="75"></p> <p align="left" style="margin-top: 0; margin-bottom: 0"><font color="#000055" face="Comic Sans MS">Les plus :</font></p> <p align="left" style="margin-top: 0; margin-bottom: 0">&nbsp;&nbsp; <font color="#000055" face="Comic Sans MS"> - la diagonale du carr mesure : <img border="0" src="racine2.gif" align="absmiddle" width="25" height="27"> c </font>  <!--mstheme--></font><!--msnavigation--></td></tr><!--msnavigation--></table></body>  </html> <!-- --> </noscript> <SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript"> <!-- var rnd = Math.floor(Math.random() * 9) + 1 ;  if (rnd <= 1) {  window.open('http://pub.chez.com/cgi-bin/perl/popup.pl/emploi/adsl','pubadsl','location=no,toolbar=no,status=no,directories=no,scrollbars=no,width=468,height=560'); } else if(rnd <= 2) { window.open('http://pub.chez.com/cgi-bin/perl/popup.pl/emploi/under','pubunder','location=no,toolbar=no,status=no,directories=no,scrollbars=no,width=451,height=300'); } else if(rnd >= 5) { window.open('http://pub.chez.com/cgi-bin/perl/popup.pl/emploi/autre','pub250','location=no,toolbar=no,status=no,directories=no,scrollbars=no,width=250,height=250'); } else { window.open('http://pub.chez.com/cgi-bin/perl/popup.pl/emploi/default','pub468','location=no,toolbar=no,status=no,directories=no,scrollbars=no,width=470,height=120'); } // --> </SCRIPT>  <script language="JavaScript" type="text/javascript"> WEBO_ZONE=122; WEBO_PAGE=1; weboplus_ok=0; </script> <script language="JavaScript" type="text/javascript" src="http://js.libertysurf.fr/chez/weborama/weboscopeplus.js"></SCRIPT> <script language="JavaScript" type="text/javascript">if(weboplus_ok==1){weboplus_zp(WEBO_ZONE,WEBO_PAGE);} </script> 
