\u6628\u5929edi\u7ed9\u6211\u51fa\u4e86\u4e24\u9053\u4ee3\u6570\u9898\uff0c\u81ea\u4ece\u6bd5\u4e1a\u540e\uff0c\u5df2\u7ecfN\u5e74\u6ca1\u78b0\u8fc7\u6570\u5b66\u4e86\u3002\u4e4d\u4e00\u770b\uff0c\u76f4\u53d1\u61f5\u3002\u4e0d\u8fc7\u6ca1\u60f3\u5230\u540e\u6765\u67e5\u4e86\u67e5\u516c\u5f0f\uff0c\u5c45\u7136\u8fd8\u90fd\u505a\u51fa\u6765\u4e86\u3002\u771f\u6709\u6210\u5c31\u611f\uff01<\/p>\n
edi\u6b63\u5728\u4e0a\u4e2d\u5b66\u56db\u5e74\u7ea7\uff0c\u76f8\u5f53\u4e8e\u6211\u4eec\u7684\u521d\u4e8c\u3002\u6211\u770b\u4e86\u4e00\u4e0b\uff0c\u8fd9\u8fb9\u7684\u6570\u5b66\u6bd4\u4e2d\u56fd\u540c\u5e74\u7eaa\u7684\u8bfe\u7a0b\u8981\u7b80\u5355\u3002\u4f46\u82f1\u6587\u8bfe\u672c\u5219\u6bd4\u4e2d\u56fd\u7684\u4e30\u5bcc\u7684\u591a\uff0c\u6709\u597d\u51e0\u4e2a\u5f62\u5bb9\u8bcd\u6211\u90fd\u4e0d\u77e5\u9053\u3002<\/p>\n
\u4e24\u9053\u9898\u6211\u6253\u51fa\u6765\u4e86\uff0c\u5efa\u8bae\u6bd5\u4e1a\u4e09\u5e74\u4ee5\u4e0a\uff0c\u4e00\u76f4\u6ca1\u518d\u78b0\u8fc7\u6570\u5b66\u7684\u670b\u53cb\u8bd5\u8bd5\u770b\u3002 ;)<\/p>\n
\r\n r s r-s\r\n ---------- - ---------- - -------\r\n rs+s<sup>2<\/sup> r<sup>2<\/sup>+rs 2rs\r\n\r\n r s r-s\r\n= ---------- - ---------- - -------\r\n s(r+s) r(r+s) 2rs\r\n\r\n 2r<sup>2<\/sup>-2s<sup>2<\/sup>-(r-s)(r+s)\r\n= --------------------------\r\n 2rs(r+s)\r\n\r\n 2r<sup>2<\/sup>-2s<sup>2<\/sup>-r2+s2\r\n= ------------------------\r\n 2rs(r+s)\r\n\r\n r2-s2\r\n= --------------\r\n 2rs(r+s)\r\n\r\n (r+s)(r-s)\r\n= --------------\r\n 2rs(r+s)\r\n\r\n r-s\r\n= ---------\r\n 2rs\r\n<\/pre>\n\r\n s 1 1\r\n---------- - --------- - ------\r\n st<sup>2<\/sup>-t3 s<sup>2<\/sup>-st t2\r\n\r\n s2-t2-(s-t)s\r\n= -----------------\r\n t<sup>2<\/sup>s(s-t)\r\n\r\n -t<sup>2<\/sup>+st\r\n= -------------\r\n t<sup>2<\/sup>s(s-t)\r\n\r\n 1\r\n= ------\r\n ts\r\n<\/pre>\n\u53e6\u5916\uff0c\u53c8\u8ddfdiana\u5b66\u4e86\u51e0\u4e2a\u8bcd\u3002
\nSpitzer winkel = acute angle
\nRechter winker = right angle
\nStumpfer winkel = obtuse angle
\nErhabenen winkel = 180 < angle <360<\/p>\n","protected":false},"excerpt":{"rendered":"\u6628\u5929edi\u7ed9\u6211\u51fa\u4e86\u4e24\u9053\u4ee3\u6570\u9898\uff0c\u81ea\u4ece\u6bd5\u4e1a\u540e\uff0c\u5df2\u7ecfN\u5e74\u6ca1\u78b0\u8fc7\u6570\u5b66\u4e86\u3002\u4e4d\u4e00\u770b\uff0c\u76f4\u53d1\u61f5\u3002\u4e0d\u8fc7\u6ca1\u60f3\u5230\u540e\u6765\u67e5\u4e86\u67e5\u516c\u5f0f\uff0c\u5c45\u7136 … \u7ee7\u7eed\u9605\u8bfb\u5965\u5730\u5229\u4e2d\u5b66\u56db\u5e74\u7ea7\u4ee3\u6570\u9898<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-103","post","type-post","status-publish","format-standard","hentry","category-memory"],"_links":{"self":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=103"}],"version-history":[{"count":0,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/103\/revisions"}],"wp:attachment":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}