台灣黑皮歐巴桑的學習祕笈

中英文版(國二數學) 內角與外角：三角形的外角定理

國中_數學_15-1-2 三角形的外角定理
https://www.youtube.com/watch?v=eeJ0Xl010GM

國中_數學_三角形基本性質_三角形外角定理
https://www.youtube.com/watch?v=7kleL4dK1wA

三角形的外角定理
https://www.youtube.com/watch?v=hGXsq7hQ5RY

國中第四冊-三角形的內角和外角
https://www.youtube.com/watch?v=gtuWPyEYsx0

國中_數學_三角形基本性質_三角形外角定理_練習1
https://www.youtube.com/watch?v=rsDrCaKZB0w

國中_數學_三角形基本性質_三角形外角定理_練習2
https://www.youtube.com/watch?v=KrZFfy2leXA

三角形外角定理應用1
https://www.youtube.com/watch?v=MWFlVVbo6ys

三角形外角定理應用2
https://www.youtube.com/watch?v=re8xKCkgosA

104會考_數學解析_選擇題第18題
https://www.youtube.com/watch?v=dUAZ1qpfF38

三角形外角定理(例4~例6)
https://www.youtube.com/watch?v=wckDfYLpZlE

Exterior Angle Theorem - MathHelp.com - Geometry Hel
https://www.youtube.com/watch?v=YS2K2SpvVIA

Exterior Angle Theorem for Triangles
https://www.youtube.com/watch?v=bBt6IPkZd-8

Remote Interior and Exterior Angles
https://www.youtube.com/watch?v=lz87XqdCliI

Triangle angle example 1 | Angles and intersecting lines | Geometry | Khan Academ
https://www.youtube.com/watch?v=hmj3_zbz2eg

Triangle Sum Theorem
https://www.youtube.com/watch?v=vZ296dxmmXk

Exterior Angle Theorem Tutoria
https://www.youtube.com/watch?v=oMSU039NH3w

KutaSoftware: Geometry- Exterior Angle Theorem Part 2
https://www.youtube.com/watch?v=0BoJDaQIICg

Exterior Angle Theorem
https://www.youtube.com/watch?v=yeV037nPvdc

Angles of a Triangle - Triangle Sum Theorem - MathHelp.com
https://www.youtube.com/watch?v=eoe8bpowBK4

8th Grade Chapter 3.2: Interior and Exterior Angles of a Triangle
https://www.youtube.com/watch?v=YKJu4NlZHjI

部分資料來源: 學習吧
https://www.learnmode.net/knowledge/version?p=36#focus