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Spiral of Half Equilateral Triangles with Inscribed Circles (Dr Geo geometry file)

Half equilateral triangles (30°-60°-90° triangles) are positioned recursively, with the side of one triangle being equal in length to the hypotenuse of the next. A circle is inscribed in each triangle. Calculate the area of the ninth circle relative to the first circle. File type drgeo for the Dr Geo dynamic geometry software. A png image file is also on as Spiralofhalfequilateraltrianglesdrgeo.png

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