The Science of the Shulba: A Study in Early Hindu Geometry c13.s3.5
The Science of the Śulba: A Study in Early Hindu Geometry c13.s3.5
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c13.s3.5
It should be remarked that the unit puruṣa in this passage is not the ordinary puruṣa of 120 aṅgulis, but a reduced unit whose length is equal to a side of a square equivalent to one half of the ordinary square puruṣa.¹ So the area of the trapezium is equal to 15 reduced square puruṣas or 7½ ordinary square puruṣas.