¶ Equilateral
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Index Entry
Equilateral:
“Having all the sides approximately equal. The extent of variation in length of sides is determined trigonometrically or empirically by constructing three-way grids on the modularly-divided edges of the faces of a spherical icosahedron.”
¶ Citations
- Patent No. 2, 682, 235, June 29, 1954 BUILDING CONSTRUCTION
