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Will construct extra-large (50mm sided) regular polygons from similar shapes in Mathomat
The regular polygon expansion scale
Originally designed for display on the trains of the London Underground
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9712 Ratios: 1: 20,30,50,100 - Hand scale ruler, 300mm Teaching with Mathomat Will construct extra-large (50mm sided)Hand scale rulers, 300mm, 4 bevel Ratios: 1: 20,30,50,100
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