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geometry - Calculate the radius of a circle given the chord length and height of a segment - Mathematics Stack Exchange
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Circles: Circumference, Area, Arcs, Chords, Secants, Tangents, Power of the Point. Theorems. All the links are here
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Circles: Circumference, Area, Arcs, Chords, Secants, Tangents, Power of the Point. Theorems. All the links are here
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