一道标准几何题

长剑出鞘

<P>一个等腰三角形，底边和高是A，</P>
<P>一个正方形，边长A，</P>
<P>一个圆，直径A，</P>
<P>都是空心的。</P>
<P>要求做一个立体模型，可以恰好穿过这3个空心的形状，穿过时又不留缝隙。</P>

[此贴子已经被作者于2005-4-7 8:40:13编辑过]

雨浓

题目不是太清楚……写准确一点！

钰湫

<img src="attachments/dvbbs/2005-4/200546183516886.bmp" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-4/200546183516886.bmp\');}" onmousewheel="return imgzoom(this);" alt="" />

风月楼主

对头

长剑出鞘

<DIV class=quote><B>以下是引用<I>钰湫</I>在2005-4-6 18:35:18的发言：</B>
<img src="attachments/dvbbs/2005-4/200546183516886.bmp" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-4/200546183516886.bmp\');}" onmousewheel="return imgzoom(this);" alt="" />
</DIV>
<P>厉害！</P>

长剑出鞘

<DIV class=quote><B>以下是引用<I>雨浓</I>在2005-4-6 17:43:53的发言：</B>
题目不是太清楚……写准确一点！</DIV>
<P>对不起老师，刚才是出错题了。</P>[em06][em06][em06]

长剑出鞘

不过已改正。

歪歪歪歪

<DIV class=quote><B>以下是引用<I>钰湫</I>在2005-4-6 18:35:18的发言：</B>
<img src="attachments/dvbbs/2005-4/200546183516886.bmp" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-4/200546183516886.bmp\');}" onmousewheel="return imgzoom(this);" alt="" />
</DIV>

这是什么形状？厨师帽子？，我立体感太差

偶遇

钰湫果然是能人~~~BF

臭臭爸

好像我读高中时，海淀区的习题集里有这道题，还是C类的