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Constructing inscribed regular polygons - WORKSHEET #3 ...

Constructing inscribed regular polygons - WORKSHEET #3 – geometrycommoncore 2 3. The inscribed equilateral triangle has a central angle of 120 because 360 / 3 = 120 , an inscribed square has a central angle of 90 because 360 / 4 = 90 . The central angle of a decagon is 36 because 360 / 10 = 36 . Use this information and a compass to create an ...