Understanding the Basic Proportionality Theorem through an Activity

The video explains the basic proportionality theorem, also known as Thales Theorem, which states that if a line is drawn parallel to one side of a triangle, it divides the other two sides proportionally. The video includes an activity to demonstrate this theorem using a sheet of paper and a triangle. The activity involves folding the paper to create parallel lines, placing a triangle on it, and measuring segments to verify the theorem. The video concludes with a summary of the findings and verification of the theorem.

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