The geometrical structure depicted in the picture is called ...
Hippocrates hairpin
Spiral of Archimedes
Euclid's crust
Spiral of Theodorus
In geometry, the spiral of Theodorus is a spiral composed of contiguous right triangles. It was first constructed by Theodorus of Cyrene.The principle of construction is based on the Pythagorean theorem.
reach: rather globalgeometrymathematics
Answers by country
Hippocrates hairpin
Spiral of Archimedes
Euclid's crust
Spiral of Theodorus
answers
 France
France24
 the Netherlands
the Netherlands26
 Canada
Canada13
 Austria
Austria45
 Greece
Greece19
 Poland
Poland4738
 the Philippines
the Philippines15
 Pakistan
Pakistan10
 the United States
the United States172
 Switzerland
Switzerland29
 Germany
Germany247
 Denmark
Denmark10
 the United Kingdom
the United Kingdom98
 Australia
Australia28
 India
India117
 Republic of Ireland
Republic of Ireland13