YLL討論網

由 **G@ry** 於星期一六月 25, 2007 11:57 am

角錐寫到:#ed_op#div#ed_cl#謝謝您的回答#ed_op#/div#ed_cl##ed_op#div#ed_cl#請問這其中的道理是???#ed_op#/div#ed_cl##ed_op#div#ed_cl#如何想到要這樣做的???#ed_op#img src="http://yll.loxa.edu.tw/phpBB2/richedit/smileys//yy57.gif"#ed_cl##ed_op#/div#ed_cl#

#ed_op#br#ed_cl#首先最簡單的就是正方形的底，邊長全部相同，最易作的圖形；#ed_op#br#ed_cl#然後就是另外兩個等腰(正方形邊長)三角形面，只需將正方形的邊線延長一倍就可以了；#ed_op#br#ed_cl#再利用等腰三角形面的斜邊去作出另外兩個三角形面的直角邊(直角邊只需將正方形的邊線延長就可以，不用量角)...#ed_op#br#ed_cl#就這樣再加上用作剪貼的邊就可以了~~#ed_op#br#ed_cl#

由角錐於星期一六月 25, 2007 9:30 am

#ed_op#DIV#ed_cl#謝謝您的回答#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#請問這其中的道理是???#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#如何想到要這樣做的???#ed_op#IMG src="http://yll.loxa.edu.tw/phpBB2/richedit/smileys//yy57.gif"#ed_cl##ed_op#/DIV#ed_cl#

由 **G@ry** 於星期一六月 25, 2007 7:32 am

角錐寫到:#ed_op#div#ed_cl##ed_op#div#ed_cl##ed_op#span id="maintopic"#ed_cl#角錐、圓錐體積為同底等高柱體的三分之一#ed_op#/span#ed_cl##ed_op#/div#ed_cl##ed_op#/div#ed_cl##ed_op#div#ed_cl##ed_op#a href="http://city.udn.com/v1/blog/article/article.jsp?uid=pg4516&f_ART_ID=1017120"#ed_cl#http://city.udn.com/v1/blog/article/article.jsp?uid=pg4516&f_ART_ID=1017120#ed_op#/a#ed_cl##ed_op#/div#ed_cl##ed_op#div#ed_cl# #ed_op#/div#ed_cl##ed_op#div#ed_cl##ed_op#span id="maintopic"#ed_cl#很明白直接的解釋方式#ed_op#/span#ed_cl##ed_op#/div#ed_cl##ed_op#div#ed_cl##ed_op#span#ed_cl#but#ed_op#/span#ed_cl##ed_op#/div#ed_cl##ed_op#div#ed_cl##ed_op#span#ed_cl#請問這#ed_op#strong#ed_cl##ed_op#font color="#0060bf" size="5"#ed_cl#美勞作品#ed_op#/font#ed_cl##ed_op#/strong#ed_cl#要如何做？#ed_op#/span#ed_cl##ed_op#/div#ed_cl##ed_op#div#ed_cl##ed_op#span#ed_cl##ed_op#/span#ed_cl# #ed_op#/div#ed_cl##ed_op#div#ed_cl##ed_op#span#ed_cl##ed_op#/span#ed_cl# #ed_op#/div#ed_cl##ed_op#div#ed_cl##ed_op#span#ed_cl##ed_op#/span#ed_cl# #ed_op#/div#ed_cl#

#ed_op#img src="richedit/upload/2kcfb81ee2d3.png" alt="image file name: 2kcfb81ee2d3.png" border="0"#ed_cl##ed_op#br#ed_cl#方法有很多種，這種是作邊時比較容易的，不需要計算長度；但不是駁口位最少的，亦不是所用面積最少的。#ed_op#br#ed_cl#同色線為同長度之邊，紅色線為剪貼位...#ed_op#br#ed_cl#這比較麻煩的只是要把等腰三角形面的斜邊(綠線)與另一個三角形的直角邊(綠線)對比量度一下而已...#ed_op#br#ed_cl#

由角錐於星期日六月 24, 2007 8:41 pm

#ed_op#DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN id=maintopic#ed_cl#角錐、圓錐體積為同底等高柱體的三分之一#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#A href="http://city.udn.com/v1/blog/article/article.jsp?uid=pg4516&f_ART_ID=1017120"#ed_cl#http://city.udn.com/v1/blog/article/article.jsp?uid=pg4516&f_ART_ID=1017120#ed_op#/A#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN id=maintopic#ed_cl#很明白直接的解釋方式#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl#but#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl#請問這#ed_op#STRONG#ed_cl##ed_op#FONT color=#0060bf size=5#ed_cl#美勞作品#ed_op#/FONT#ed_cl##ed_op#/STRONG#ed_cl#要如何做？#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl##ed_op#/SPAN#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl##ed_op#/SPAN#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl##ed_op#/SPAN#ed_cl# #ed_op#/DIV#ed_cl#

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Re: [數學]角錐--->角柱的作法???

[數學]角錐--->角柱的作法???

(請將產生的程式碼，剪貼至上方文章區！)
[quote="角錐"]#ed_op#DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN id=maintopic#ed_cl#角錐、圓錐體積為同底等高柱體的三分之一#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#A href="http://city.udn.com/v1/blog/article/article.jsp?uid=pg4516&f_ART_ID=1017120"#ed_cl#http://city.udn.com/v1/blog/article/article.jsp?uid=pg4516&f_ART_ID=1017120#ed_op#/A#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN id=maintopic#ed_cl#很明白直接的解釋方式#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl#but#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl#請問這#ed_op#STRONG#ed_cl##ed_op#FONT color=#0060bf size=5#ed_cl#美勞作品#ed_op#/FONT#ed_cl##ed_op#/STRONG#ed_cl#要如何做？#ed_op#/SPAN#ed_cl##ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl##ed_op#/SPAN#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl##ed_op#/SPAN#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl##ed_op#SPAN#ed_cl##ed_op#/SPAN#ed_cl# #ed_op#/DIV#ed_cl# [/quote]