1.0齊齊溫https://www.study-together.com/eduWingSirhttps://www.study-together.com/edu/author/takwing1hk/rich600338<blockquote class="wp-embedded-content" data-secret="ylFv4RzYl1"><a href="https://www.study-together.com/edu/secondary/form1_maths/introduction-to-geometry/">7. 幾何簡介 (Introduction to Geometry)</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.study-together.com/edu/secondary/form1_maths/introduction-to-geometry/embed/#?secret=ylFv4RzYl1" width="600" height="338" title="7. 幾何簡介 (Introduction to Geometry) — 齊齊溫" data-secret="ylFv4RzYl1" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.study-together.com/edu/wp-includes/js/wp-embed.min.js </script> 幾何學(Geometry) 的拉丁文是 geometein。 geo 是土地的意思、metrein 是測量的意思所以幾何學的原意係土地測量。而係數學入面，幾何學主要係研究物體形狀、大小、位置以及它們之間相互關係嘅的學科，包括點、直線、圓、曲線、平面與立體等。喺中一入面，大家只需要學個詞彙、幾個定理就得, 唔會太難。https://www.study-together.com/edu/wp-content/uploads/2020/07/f1maths_perpendicularLine.jpg