The Science of the Shulba: A Study in Early Hindu Geometry c9.32

c9.32

two bricks of two different kinds. Since there is mentioned only one *ubhayī* though there are distinguished two different kinds of quarter bricks of a rectangle (the *adhyardha*) it follows that Baudhāyana was fully aware, what has been just mentioned, that all the eighth parts of a rectangle are identical. What is much more noteworthy is that in the formation of the *ubhayī* we find the source of the discovery of the later Hindu principle of forming a rational scalene tringle by the juxtaposition of two rational right-angled triangles.²