The Journal of the Indian Mathematical Society

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The Equilateral Triangle by Paper-Folding


     

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The construction given by Mr. Sundara Row for an equilateral triangle by paper-folding is as follows : (page 10, §25, of the American Edition, 1901): " Take a line AB. Bisect it perpendicularly by a line CD. On the bisector take a point D so that AD=AB. Then ADB is the equilateral triangle."
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  • The Equilateral Triangle by Paper-Folding

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The construction given by Mr. Sundara Row for an equilateral triangle by paper-folding is as follows : (page 10, §25, of the American Edition, 1901): " Take a line AB. Bisect it perpendicularly by a line CD. On the bisector take a point D so that AD=AB. Then ADB is the equilateral triangle."