---
title: 三角形
description: 透過繁體中文數學影片學習三角形。
url: https://astra-ai.co/zh-TW/videos/plane-geometry/chapter-851a9d39/
locale: zh-TW
type: video-chapter
published: 2026-10-01T21:32:42.885Z
updated: 2026-10-01T21:32:42.885Z
alternates:
  bg: https://astra-ai.co/bg/videos/ploska-geometriya/triagalnik/
  br: https://astra-ai.co/br/videos/geometria-plana/capitulo-matematica-019/
  cs: https://astra-ai.co/cs/videos/rovinna-geometrie/trojuhelnik/
  da: https://astra-ai.co/da/videos/plan-geometri/trekant/
  de: https://astra-ai.co/de/videos/geometrie-in-der-ebene/dreieck/
  el: https://astra-ai.co/el/videos/epipedi-geometria/trigono/
  en: https://astra-ai.co/videos/plane-geometry/triangle/
  en-IN: https://astra-ai.co/en-IN/videos/plane-geometry/chapter-851a9d39/
  en-PH: https://astra-ai.co/en-PH/videos/plane-geometry/chapter-851a9d39/
  es: https://astra-ai.co/es/videos/geometria-plana/triangulos/
  es-AR: https://astra-ai.co/es-AR/videos/geometria-plana/capitulo-14/
  es-CL: https://astra-ai.co/es-CL/videos/geometria-plana/capitulo-14/
  es-PE: https://astra-ai.co/es-PE/videos/geometria-plana/capitulo-video-851a9d39/
  et: https://astra-ai.co/et/videos/tasandigeomeetria/kolmnurk/
  fi: https://astra-ai.co/fi/videos/tasogeometria/kolmio/
  fr: https://astra-ai.co/fr/videos/geometrie-plane/le-triangle/
  hr: https://astra-ai.co/hr/videos/ravninska-geometrija/trokut/
  hu: https://astra-ai.co/hu/videos/sikgeometria/haromszog/
  id: https://astra-ai.co/id/videos/geometri-bidang/segitiga/
  it: https://astra-ai.co/it/videos/geometria-piana/triangolo/
  ja: https://astra-ai.co/ja/videos/plane-geometry-ja/ja-chapter-14/
  km: https://astra-ai.co/km/videos/plane-geometry/chapter-851a9d39/
  ko: https://astra-ai.co/ko/videos/plane-geometry-ko/14/
  lo: https://astra-ai.co/lo/videos/lo-d640810d/lo-851a9d39/
  lt: https://astra-ai.co/lt/videos/plokscioji-geometrija/trikampis/
  lv: https://astra-ai.co/lv/videos/plaknes-geometrija/trijsturis/
  ms: https://astra-ai.co/ms/videos/plane-geometry/bab-19-matematik-asas/
  ms-BN: https://astra-ai.co/ms-BN/videos/geometri-satah/bab-matematik-14/
  mx: https://astra-ai.co/mx/videos/geometria-plana/capitulo-14/
  my: https://astra-ai.co/my/videos/my-d640810d/my-851a9d39/
  nl: https://astra-ai.co/nl/videos/vlakke-geometrie/driehoek/
  no: https://astra-ai.co/no/videos/plan-geometri/trekant/
  pl: https://astra-ai.co/pl/videos/geometria-plaska/trojkat/
  pt: https://astra-ai.co/pt/videos/geometria-plana/triangulo/
  pt-TL: https://astra-ai.co/pt-TL/videos/geometria-plana/capitulo-de-video-014/
  ro: https://astra-ai.co/ro/videos/geometrie-plana/triunghi/
  sk: https://astra-ai.co/sk/videos/rovinna-geometria/kapitola-014/
  sl: https://astra-ai.co/sl/videos/ravninska-geometrija/trikotnik/
  sr: https://astra-ai.co/sr/videos/geometrija-ravni/poglavlje-014/
  sv: https://astra-ai.co/sv/videos/plan-geometri/triangel/
  th: https://astra-ai.co/th/videos/plane-geometry/bot-19-samliam/
  tr: https://astra-ai.co/tr/videos/duzlem-geometrisi/bolum-014/
  uk: https://astra-ai.co/uk/videos/uk-topic-07/uk-chapter-19/
  vi: https://astra-ai.co/vi/videos/vi-topic-07/vi-chapter-19/
  zh-HK: https://astra-ai.co/zh-HK/videos/shuxue-kecheng-007/shuxue-zhang-019/
  zh-TW: https://astra-ai.co/zh-TW/videos/plane-geometry/chapter-851a9d39/
---

# 三角形

> 透過影片學習三角形。

## 三角形

本影片說明重要的數學概念。