Copy of Sum angles triangle

Author:Lindsay Cox, sbrame

This shows that the sum of angles in a random triangle always equals 180 degrees. You can change the angles with the switches and come to the same conclusion.

New Resources

探究長方形對角線上的正方形數目
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
רישום חופשי
Proving Triangles Congruent (2): Multi-Step Transformations
Conchoids of Nicomedes

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Inequalities
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