TRIANGOLO definizioni e somma di angoli interni e esterni con Geogebra _ GE05

🔗 Link to the Euclidean geometry playlist:    • GEOMETRIA EUCLIDEA   🧮 Let's look at the first definitions and prove that the sum of the interior angles of a triangle is equal to a straight angle and that the sum of the exterior angles is equal to two straight angles. 00:00 Introduction 00:48 Definition of Triangle 01:35 Sides and Notation 03:13 Angles and Notation 08:21 Sum of Interior Angles 12:52 Sum of Exterior Angles GeoGebra Website: https://www.geogebra.org/ Where to download the software: https://www.geogebra.org/download 📱FACEBOOK:   / matematicale   📱INSTAGRAM:   / matematicale1   📱TIKTOK:   / matematicale   📨 MAIL: [email protected] 🌐 WEBSITE: https://www.matematicale.com