tag:blogger.com,1999:blog-3550204829234352390.post1914699346254997297..comments2024-03-27T09:13:48.546+08:00Comments on 研發養成所 ( Bridan's Blog - 4rdp, For R&D Person ): 訓練數學感 185 ─ 兩圓相交面積Bridanhttp://www.blogger.com/profile/17055047757114667099noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-3550204829234352390.post-4301814646201290842018-08-29T20:40:35.220+08:002018-08-29T20:40:35.220+08:00謝謝行天下的補充。謝謝行天下的補充。Bridanhttps://www.blogger.com/profile/17055047757114667099noreply@blogger.comtag:blogger.com,1999:blog-3550204829234352390.post-63900190956763551252018-08-29T08:50:36.638+08:002018-08-29T08:50:36.638+08:00general form:
http://mathworld.wolfram.com/Circle-...general form:<br />http://mathworld.wolfram.com/Circle-CircleIntersection.html行天下https://www.blogger.com/profile/04992727596324526135noreply@blogger.comtag:blogger.com,1999:blog-3550204829234352390.post-85954723044677416632018-08-29T00:11:18.482+08:002018-08-29T00:11:18.482+08:00如果知道直角三角形 30,60,90度,其邊長為1,$\sqrt{3}$,2,就可以解題。如果知道直角三角形 30,60,90度,其邊長為1,$\sqrt{3}$,2,就可以解題。Bridanhttps://www.blogger.com/profile/17055047757114667099noreply@blogger.comtag:blogger.com,1999:blog-3550204829234352390.post-74062350237118146222018-08-28T09:14:05.139+08:002018-08-28T09:14:05.139+08:00要算扇形的劃一定需要角度,不過條件只給兩圓半徑 連心線的話 在我的能力範圍好像不行。要算扇形的劃一定需要角度,不過條件只給兩圓半徑 連心線的話 在我的能力範圍好像不行。.https://www.blogger.com/profile/16677804023065232981noreply@blogger.comtag:blogger.com,1999:blog-3550204829234352390.post-64589392258790516622018-08-27T21:24:55.929+08:002018-08-27T21:24:55.929+08:00正解,如果不考慮三角函數,如何解?正解,如果不考慮三角函數,如何解?Bridanhttps://www.blogger.com/profile/17055047757114667099noreply@blogger.comtag:blogger.com,1999:blog-3550204829234352390.post-75372586002150589342018-08-26T10:56:41.139+08:002018-08-26T10:56:41.139+08:00http://4rdp.blogspot.com/2017/05/blog-post.html
已解...http://4rdp.blogspot.com/2017/05/blog-post.html<br />已解決!<br />這題是特例,輔助線畫一畫可得兩個扇形和兩個弓形,面積(2π/3-√3/2)r².https://www.blogger.com/profile/16677804023065232981noreply@blogger.com