\u6247\u5f62\u662f\u5e73\u9762\u56fe\u5f62\uff0c\u6247\u5f62\u662f\u4e0e\u5706\u5f62\u6709\u5173\u7684\u4e00\u79cd\u91cd\u8981\u56fe\u5f62\uff0c\u5176\u9762\u79ef\u4e0e\u5706\u5fc3\u89d2(\u9876\u89d2)\u3001\u5706\u534a\u5f84\u76f8\u5173\u3002\u5f62\u8c61\u5730\u8bf4\uff0c\u5c31\u662f\u4e24\u6761\u7ebf\u6bb5\u548c\u4e00\u6bb5\u5f27\uff08\u66f2\u7ebf\uff09\u56f4\u6210\u4e86\u6247\u5f62\u3002<\/p>\n
\u6247\u5f62\u7684\u9762\u79ef\u516c\u5f0f<\/p>\n
\u6247\u5f62\u7684\u9762\u79ef=\u5706\u9762\u79ef(\u03c0\u00d7\u534a\u5f84\u7684\u5e73\u65b9)\u00d7\u5706\u5fc3\u89d2\/360\u5ea6<\/p>\n
\u6240\u4ee5\u6247\u5f62\u9762\u79ef=\u534a\u5f84\u00d7\u534a\u5f84\u00d7\u5706\u5468\u7387\u00d7\u5706\u5fc3\u89d2\u5ea6\u6570\u00f7360<\/p>\n
\u6ce8\uff1a\u03c0\u4e3a\u5706\u5468\u7387\u7ea6\u7b49\u4e8e3.1415926535\u4e00\u822c\u53d63.14\u3002<\/p>\n
R\u662f\u6247\u5f62\u534a\u5f84\uff0cn\u662f\u5f27\u6240\u5bf9\u5706\u5fc3\u89d2\u5ea6\u6570\uff0c\u03c0\u662f\u5706\u5468\u7387\u3002<\/p>\n
\u4e5f\u53ef\u4ee5\u7528\u6247\u5f62\u6240\u5728\u5706\u7684\u9762\u79ef\u9664\u4ee5360\u518d\u4e58\u4ee5\u6247\u5f62\u5706\u5fc3\u89d2\u7684\u89d2\u5ea6n\u3002<\/p>\n
\u6247\u5f62\u7684\u9762\u79ef\u516c\u5f0f\u63a8\u5bfc\u8fc7\u7a0b<\/p>\n
\u63a8\u5bfc\u8fc7\u7a0b\uff1a\u7531\u5b9a\u7406\u201c\u7b49\u534a\u5f84\u7684\u4e24\u4e2a\u6247\u5f62\u7684\u9762\u79ef\u4e4b\u6bd4\u7b49\u4e8e\u5b83\u4eec\u7684\u5f27\u957f\u4e4b\u6bd4\u201d\uff0c\u5c06\u5706\u770b\u4f5c\u6247\u5f62\uff0c\u5229\u7528\u5f27\u957f\u516c\u5f0f\u548c\u5706\u7684\u9762\u79ef\u516c\u5f0f\u5373\u53ef\u3002<\/p>\n
\u56e0\u4e3a\u5706\u7684\u9762\u79ef\u516c\u5f0f\u4e3as=\u03c0r2\uff0c\u5373\u5706\u5fc3\u89d2\u4e3a360\u5ea6\u6240\u5bf9\u7684\u9762\u79ef\uff0c\u800c\u6bcf\u89d2\u5ea6\u6240\u5bf9\u6247\u5f62\u7684\u9762\u79ef\u4e3as=\u03c0r2\/360\u5ea6\uff0c\u6545\u5706\u5fc3\u89d2\u4e3a\u03b8\u65f6\u6240\u5bf9\u6247\u5f62\u7684\u9762\u79efs=\u03b8\u03c0r2\/360\u5ea6\u3002<\/p>\n
\u534a\u5f84\u76f8\u540c\u7684\u6247\u5f62\u6bd4\u5706\u5c0f\u5417<\/p>\n
\u80af\u5b9a\u7684\u3002<\/p>\n
\u6247\u5f62\u53ea\u662f\u5706\u7684\u4e00\u90e8\u5206\uff0c\u6247\u5f62\u7684\u534a\u5f84\u548c\u5706\u534a\u5f84\u76f8\u540c\u5c31\u5728\u540c\u4e00\u4e2a\u5706\u5185\uff0c\u76f8\u7b49\u53ef\u80fd\u662f\u4e24\u4e2a\u7b49\u5f84\u5706\uff0c\u7ed3\u8bba\u8fd8\u662f\u4e00\u6837\u3002\u65e2\u7136\u6247\u5f62\u53ea\u662f\u56ed\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u7684\u9762\u79ef\u662f\u80fd\u662f\u5706\u7684\u4e00\u90e8\u5206\uff0c\u6545\u9762\u79ef\u5fc5\u5c0f\u4e8e\u5706\u3002<\/p>\n
\u6247\u5f62\u7684\u9762\u79ef\u4e00\u5b9a\u6bd4\u5706\u7684\u9762\u79ef\u5c0f\u5417<\/p>\n
\u4e0d\u4e00\u5b9a\u3002<\/p>\n
\u53ea\u6709\u6247\u5f62\u7684\u534a\u5f84\u5c0f\u4e8e\u7b49\u4e8e\u5706\u7684\u534a\u5f84\u60c5\u51b5\u4e0b\uff0c\u624d\u53ef\u4ee5\u8bf4\u5706\u7684\u9762\u79ef\u6bd4\u6247\u5f62\u7684\u9762\u79ef\u5927\uff0c\u5426\u5219\u662f\u4e0d\u4e00\u5b9a\u7684\u3002\u5982\u679c\u6247\u5f62\u534a\u5f84\u5f88\u5927\uff0c\u5706\u534a\u5f84\u5f88\u5c0f\uff0c\u90a3\u4e48\u6247\u5f62\u7684\u9762\u79ef\u66f4\u5927\u3002<\/p>\n
\u9664\u6b64\u4ee5\u5916\u5f53\u6247\u5f62\u7684\u534a\u5f84\u5f88\u957f\uff0c\u5706\u5fc3\u89d2\u63a5\u8fd1360\u5ea6\uff0c\u5706\u7684\u534a\u5f84\u5f88\u5c0f\u65f6\uff0c\u8fd9\u65f6\u7684\u5706\u9762\u79ef\u5c0f\u4e8e\u6247\u5f62\u7684\u9762\u79ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6247\u5f62\u662f\u5e73\u9762\u56fe\u5f62\uff0c\u6247\u5f62\u662f\u4e0e\u5706\u5f62\u6709\u5173\u7684\u4e00\u79cd\u91cd\u8981\u56fe\u5f62\uff0c\u5176\u9762\u79ef\u4e0e\u5706\u5fc3\u89d2(\u9876\u89d2)\u3001\u5706\u534a\u5f84\u76f8\u5173\u3002\u5f62\u8c61\u5730\u8bf4\uff0c\u5c31\u662f\u4e24\u6761\u7ebf\u6bb5\u548c\u4e00 … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3899","post","type-post","status-publish","format-standard","hentry","category-shuxue"],"_links":{"self":[{"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/posts\/3899","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/comments?post=3899"}],"version-history":[{"count":1,"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/posts\/3899\/revisions"}],"predecessor-version":[{"id":3900,"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/posts\/3899\/revisions\/3900"}],"wp:attachment":[{"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/media?parent=3899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/categories?post=3899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.114158.com\/xueke\/wp-json\/wp\/v2\/tags?post=3899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}