Right Triangle Inscribed in Semicircle Shows Mean Proportional

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Right triangle inscribed in semicircle. Illustration shows that the perpendicular from any point in the circumference to the diameter of a circle is the mean proportional between the segments of the diameter.

Galleries

Proportions

Source

G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 161

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