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The angles of a triangle always sum to 180 degrees.
Author:
Andrea Siwik
GeoGebra
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International Day of Mathematics 2025
အခြေခံ data အခေါ်အဝေါ်များ
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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