Part 1 of proof of Heron's formula | Perimeter, area, and volume | Geometry | Khan Academy
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Part 1 of the proof of Heron's Formula
Watch the next lesson: https://www.khanacademy.org/math/geometry/basic-geometry/heron_formula_tutorial/v/part-2-of-the-proof-of-heron-s-formula?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry
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https://www.khanacademy.org/math/geometry/basic-geometry/heron_formula_tutorial/v/heron-s-formula?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry
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