[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [The Science of the Shulba: A Study in Early Hindu Geometry](https://indike.org/pramana/ins.science.datta-1932) › c13.s3.5 # 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 - **Language:** English ### [c13.s3.5](https://indike.org/pramana/ins.science.datta-1932.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. - [Previous: c13.s3.4](https://indike.org/pramana/ins.science.datta-1932.c13.s3.4) - [Next: c13.s3.6](https://indike.org/pramana/ins.science.datta-1932.c13.s3.6) - [Up: c13.s3](https://indike.org/pramana/ins.science.datta-1932.c13.s3) --- Source: [https://indike.org/pramana/ins.science.datta-1932.c13.s3.5](https://indike.org/pramana/ins.science.datta-1932.c13.s3.5) · Pramāṇa