It gained its fame in 1945 when the historian of ancient science Otto Neugebauer recognized the sexagesimal (base - 60) numbers for what they really were: a table of «Pythagorean triples» — the integer lengths of the sides and hypotenuses of right triangles. (sciencemag.org)
Begin with a «half - domino» prototile, a right triangle of sides 1 and 2 units (whose hypotenuse is √ 5 units). (newscientist.com)
Recall that the Pythagorean Theorem states that in any right triangle with sides a and b and hypotenuse c, it is true that a ² + b ² = c ². (blog.lexile.com)