Proving the Area of a Circle

The video tutorial explains how to calculate the area of a circle using the formula pi r squared. It begins with a basic introduction and a rough proof, then reviews key concepts like circumference and parallelogram area. The lesson progresses by dissecting the circle into slices, rearranging them to form a shape resembling a parallelogram, and increasing the number of slices to improve precision. Ultimately, it demonstrates that as the number of slices approaches infinity, the parallelogram's area matches the circle's area, validating the formula.

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