{"id":1426,"date":"2018-12-06T21:57:34","date_gmt":"2018-12-06T21:57:34","guid":{"rendered":"https:\/\/donder-adventures.com\/wordpress\/?p=1426"},"modified":"2018-12-26T20:18:26","modified_gmt":"2018-12-26T20:18:26","slug":"%e5%bf%83%e7%90%86%e9%99%b0%e5%bd%b1%e9%9d%a2%e7%a9%8d","status":"publish","type":"post","link":"https:\/\/donder-adventures.com\/wordpress\/%e5%bf%83%e7%90%86%e9%99%b0%e5%bd%b1%e9%9d%a2%e7%a9%8d\/","title":{"rendered":"\u5fc3\u7406\u9670\u5f71\u9762\u7a4d"},"content":{"rendered":"\n\n\n\n\n

Question 1<\/h2>\n\n\n\n
\"\"
\u5c0f\u5b78\u751f\u6578\u5b78\u984c\u76ee
\u5206\u4eab\u81ea LIHKG \u8a0e\u8ad6\u5340 – https:\/\/lih.kg\/bNHpxT <\/figcaption><\/figure><\/div>\n\n\n\n

\u5f88\u591a\u4eba\u505a\u6578\u7684\u6642\u5019\uff0c\u90fd\u6703\u7522\u751f\u4e00\u7a2e\u5947\u602a\u7684\u932f\u89ba\u3002<\/p>\n\n\n\n

\u5373\u4f7f\u554f\u984c\u51fa\u5f97\u591a\u9ebc\u542b\u7cca\uff0c\u53ea\u8981\u6709\u8db3\u5920\u7684\u667a\u6167\u548c\u8010\u6027\uff0c\u4eba\u4eba\u90fd\u6703\u627e\u5230\u4e00\u500b\u552f\u4e00\uff0c\u7d55\u5c0d\u7684\u6b63\u78ba\u7b54\u6848\u3002<\/p>\n\n\n\n

Wrong Answer A<\/h2>\n\n\n\n
\"\"
#24 – https:\/\/lih.kg\/DiODJV <\/figcaption><\/figure><\/div>\n\n\n\n

\u8a55\u8a9e\uff1a\u6c92\u6709\u68af\u5f62\u7684\u8a71\uff0c\u8acb\u4e0d\u8981\u7528\u68af\u5f62\u7684 formula\u3002<\/p>\n\n\n\n

Wrong Answer B<\/h2>\n\n\n\n
\"\"
#105 – https:\/\/lih.kg\/fPpsRMX<\/figcaption><\/figure><\/div>\n\n\n\n

\u8a55\u8a9e\uff1a A \u672a\u5fc5\u662f\u76f4\u89d2\u4e09\u89d2\u5f62\u3002\u8acb\u518d\u63a5\u518d\u53b2\u3002<\/p>\n\n\n\n

Wrong Answer C<\/h2>\n\n\n\n

\u6210\u73ed\u90fd on9
\u7528\u9593\u5c3a\u5ea6\u8fd4\u500b\u5be6\u969b\u9577\u5ea6
\u8a08\u500b\u6bd4\u4f8b\u51fa\u9ece
\u9670\u5f71\ud841\udf79\u5169\u500b\u4e09\u89d2\u5f62\u51fa\u9ece
\u7528\u9593\u5c3a\u5ea6\u8fd4\u500b\u9ad8
\u8a08\u5169\u500b\u4e09\u89d2\u5f62\u9762\u7a4d\u76f8\u52a0\u54aa\u9670\u5f71\u9762\u7a4d\u56c9
\u6210\u73ed\u5f31\u667a <\/p>#161 – https:\/\/lih.kg\/fPptbiX<\/cite><\/blockquote>\n\n\n\n

\u8a55\u8a9e\uff1a \u51fa\u984c\u8005\u672a\u5fc5\u6309\u6bd4\u4f8b\u756b\u756b\u3002\u5373\u4f7f\u4f5c\u8005\u6309\u6bd4\u4f8b\u756b\u51fa\u5716\u5f62\uff0c\u5c3a\u5b50\u4e5f\u4e0d\u80fd\u6e96\u78ba\u5730\u91cf\u5ea6\u51fa\u8ddd\u96e2\u548c\u9762\u7a4d\u3002<\/p>\n\n\n\n

Correct Answer…?<\/h2>\n\n\n\n

\u8a66\u60f3\u50cf\u81ea\u5df1\u5728\u502b\u6566\u8857\u982d\u62ff\u8457\u6771\u4eac\u7684\u5730\u5716\u3002\u5373\u4f7f\u4f60\u600e\u6a23\u52aa\u529b\u53bb\u770b\uff0c\u4e5f\u6c92\u53ef\u80fd\u9760\u8457\u5730\u5716\u627e\u5230 London Eye \u7684\u4f4d\u7f6e\u3002\u5730\u5716\u81ea\u8eab\u4e26\u6c92\u6709\u8db3\u5920\u7684\u7dda\u7d22\u3002<\/p>\n\n\n\n

\u5b78\u6703\u8cea\u7591\u81ea\u5df1\u7684\u5730\u5716\uff0c\u624d\u80fd\u767c\u73fe\u554f\u984c\u6240\u5728\u3002<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

\u88dc\u6b63\u4e00\u4e0b\u7684\u8a71\uff0c\u9019\u689d\u554f\u984c\u7684\u78ba\u662f\u6709\u89e3\u7684\u3002\u5927\u5bb6\u6709\u8208\u8da3\u7684\u8a71\u4e0d\u59a8\u8a66\u4e00\u4e0b\u3002<\/p>\n\n\n\n

Question 2<\/h2>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n

\u5982\u679c \"\angle BCD\" \u662f\u76f4\u89d2\u7684\u8a71\uff0c\u9670\u5f71\u9762\u7a4d\u662f\u591a\u5c11\uff1f\uff08\u5c0f\u5b78\u7a0b\u5ea6\uff09<\/p>\n\n\n\n

Question 3<\/h2>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n

\u5982\u679c \"OA=4\"\uff0c\u9670\u5f71\u9762\u7a4d\u53c8\u662f\u591a\u5c11\uff1f\uff08DSE \u7a0b\u5ea6\uff09<\/p>\n\n\n\n

\n\n\n\n

Answer for Q2<\/h2>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n

  <\/span>   <\/span>\"\begin{align*} \text{Area of } ABCD &= \text{Area of } \triangle BCD + \text{Area of } \triangle ABD\\&= \frac{6 \times 10}{2} + \frac{2 \times 8}{2} = 38\end{align*}\"<\/p><\/p>\n\n\n

\n\n\n\n

Answer for Q3<\/h2>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n

By Pythagorean theorem,<\/p>\n

  <\/span>   <\/span>\"\[\text{Length of } BD = \sqrt{6^2 + 8^2} = \sqrt{100} = 10\]\"<\/p><\/p>\n

Applying Heron’s formula,<\/p>\n

  <\/span>   <\/span>\"\[\text{Area of } \triangle BCD = \sqrt{s(s-6)(s-10)(s-10)}\]\"<\/p><\/p>\n

where \"s = \frac{6+10+10}{2} = 13\". Hence,<\/p>\n

  <\/span>   <\/span>\"\[\text{Area of } \triangle BCD = \sqrt{13 \cdot 7 \cdot 3 \cdot 3} = 3\sqrt{91}\]\"<\/p><\/p>\n

Putting everything together:<\/p>\n

  <\/span>   <\/span>\"\begin{align*} \text{Area of } ABCD &= \text{Area of } \triangle BCD + \text{Area of } \triangle ABD\\&= 3\sqrt{91} + \frac{2 \times 8}{2} = 3\sqrt{91} + 8\end{align*}\"<\/p><\/p>\n\n\n

\n\n\n\n

\u5c0f\u6545\u4e8b<\/h2>\n\n\n\n

\u300c\u9673\u8001\u5e2b\uff0c\u6211\u6709\u5622\u5514\u660e\u5440\u2026\u300d
\u5c0f\u660e\u62ff\u7740\u81ea\u5df1\u7684\u8a66\u5377\uff0c\u8d70\u5230\u8001\u5e2b\u7684\u684c\u524d\u3002
\u300c\u5462\u689d\u984c\u76ee\u5605\u7b54\u6848\uff0c\u5514\u4fc2\u54aa 38 \u54a9\uff1f\u6211\u8a08\u932f\u5497 D \u54a9\u5440\uff1f\u300d<\/p>\n\n\n\n

\u5c0f\u660e\u6628\u65e5\u7528\u4e86\u6578\u5c0f\u6642\u91cd\u8a08\u4e86\u9019\u984c\u3002\u7136\u800c\uff0c\u4ed6\u6c92\u6709\u8a08\u51fa\u5176\u4ed6\u7b54\u6848\u3002
\u554f\u4e86\u5e7e\u500b\u5e2b\u5144\u548c\u9023\u767b\u4e0a\u7684\u5df4\u6253\uff0c\u4e5f\u627e\u4e0d\u51fa\u932f\u8655\u3002
\u9019\u6a23\u4e00\u4f86\uff0c\u932f\u7684\u53ea\u53ef\u80fd\u662f\u9673 Sir \u4e86\u3002
\u300c\u4f86\u5427\uff0c\u8b93\u6211\u770b\u770b\u4f60\u5c37\u5c2c\u7684\u8868\u60c5\u2026\u300d\u5c0f\u660e\u5fc3\u4e2d\u5077\u7b11\u7740\u3002<\/p>\n\n\n\n

\u300c\u5462\u689d\u6578\uff0c\u4f60\u5187\u8a08\u932f\u5230\u5440\u3002\u300d
\u300c\u5413\uff01\uff1f\u5649\u505a\u54a9\u5187\u5206\u5605\uff1f\u300d
\u300c\u56e0\u70ba\u7b54\u6848\u5514\u4fc2 38\uff0c\u800c\u4fc2 \"38 \text{ cm}\textsuperscript{2}\"\u3002\u300d<\/p>\n\n\n\n

\u5c0f\u660e\u770b\u4e00\u770b\u8a66\u984c\uff0c\u7684\u78ba\u6bcf\u689d\u908a\u90fd\u6a19\u7740 cm\u3002
\u6050\u6015\u9023\u767b\u4e0a\u7684\u5df4\u6253\u4e5f\u6c92\u6709\u6ce8\u610f\u5230\u5427\u3002<\/p>\n\n\n\n

\u300c\u4f46\u4fc2\uff0c\u81f3\u5c11\u53ef\u4ee5\u7540\u6211\u534a\u5206\u55ce\uff1f\u300d
\u300c\u4e0d\u4e86\u2026\u5c0f\u660e\uff0c\u4f60\u5514\u8a18\u5f97\u5587\u54a9\uff1f\u55ba\u6211\u5605\u8003\u8a66\u88cf\u9762\uff0c\u53ea\u6709\u5168\u5c0d\u5148\u6709\u5206\u3002\u300d
\u300c\u2026\u300d
\u300c\u6559\u4e0d\u56b4\uff0c\u5e2b\u4e4b\u60f0\u5440\u3002\u91cd\u6709\u4e5c\u5622\u554f\u984c\uff1f\u300d<\/p>\n\n\n\n

\u8f38\u4e86\u3002<\/p>\n\n\n\n

\u300c\u5187\u5587\u3002\u5514\u8a72\u9673\u8001\u5e2b\u3002\u300d\u5c0f\u660e\u5782\u982d\u55aa\u6c23\u5730\u96e2\u958b\u6559\u54e1\u5ba4\u3002<\/p>\n\n\n\n

\u9673 Sir \u62ff\u7740\u81ea\u5df1\u7684\u5496\u5561\u676f\uff0c\u63a9\u84cb\u81ea\u5df1\u6697\u4e2d\u63da\u8d77\u7684\u5634\u89d2\u3002
\u7d66\u534a\u5206\uff0c\u5408\u60c5\uff0c\u4f46\u4e0d\u5408\u7406\u3002
\u8981\u662f\u751a\u9ebc\u90fd\u7d66 effort \u5206\u7684\u8a71\uff0c\u6211\u8c48\u80fd\u5efa\u7acb\u90a3\u7f8e\u597d\u7684 bell curve\uff1f<\/p>\n\n\n\n

\u559d\u4e0b\u90a3\u8910\u8272\u7684\u6db2\u9ad4\uff0c\u9673 Sir \u7684\u5fc3\u60c5\u53c8\u66a2\u5feb\u4e86\u8d77\u4f86\u3002
\u4eca\u5929\u7684\u5496\u5561\uff0c\u4efd\u5916\u9999\u9187\u5462\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Question 1 \u5f88\u591a\u4eba\u505a\u6578\u7684\u6642\u5019\uff0c\u90fd\u6703\u7522\u751f\u4e00\u7a2e\u5947\u602a\u7684\u932f\u89ba\u3002 \u5373\u4f7f\u554f\u984c\u51fa\u5f97\u591a\u9ebc\u542b\u7cca\uff0c\u53ea\u8981\u6709\u8db3\u5920\u7684\u667a\u6167\u548c\u8010\u6027 … \u95b1\u8b80\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":1437,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-1426","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-35"],"_links":{"self":[{"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/posts\/1426","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/comments?post=1426"}],"version-history":[{"count":44,"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/posts\/1426\/revisions"}],"predecessor-version":[{"id":1486,"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/posts\/1426\/revisions\/1486"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/media\/1437"}],"wp:attachment":[{"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/media?parent=1426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/categories?post=1426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/donder-adventures.com\/wordpress\/wp-json\/wp\/v2\/tags?post=1426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}