Interior & Exterior Angles of Triangles 三角形內角和及外角

三角形內角和/外角 Proof without words.

Alex CHIK — December 17, 2012 - 3:46 PM

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License: CC-BY-SA, GeoGebra Terms of Use
Based Upon: Fractions & Percentages 分數和百分數
Shared by Alex CHIK
Derived Resources: Addition of Angles 角的相加
Shared by Alex CHIK; Show More…; Area of Circles 圓面積
Shared by Alex CHIK; (SLOW) Area of Circles(2) 圓面積(2)
Shared by Alex CHIK; Interior & Exterior Angles of Triangles 三角形內角和及外角
Shared by Regina Brown; Wordless Proof 5
Shared by Regina Brown; Interior & Exterior Angles of Triangles 三角形內角和及外角
Shared by Regina Brown; 點擊各角可顯示它們的大小。
Shared by Turilli; Босоо өнцөг
Shared by Энхзаяа Энхбаяр; Click on the angles to show the magnitude .
Shared by Ngan Hok Hei