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Proof: Sum of angles in a triangle is 180 degrees
Author:
Mrs.Manor
,
Mathguru
Topic:
Angles
Line ED is parallel to line AB. Triangle ABC is outlined in blue. Observe how the shape and angles of this triangle ABC change as we move the points A, B and C.
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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