त्रिरज्जुकं निवर्तनमेकतः ॥ कZ_०२.२०.२३ ॥
trirajjukaṃ nivartanam ekataḥ
ନିବର୍ତ୍ତନ ଏକ ପାର୍ଶ୍ୱରେ ତିନି ରଜ୍ଜୁ (ଅର୍ଥାତ ଗୋଟିଏ ପାର୍ଶ୍ୱର ଲମ୍ବ ତିନି ରଜ୍ଜୁ)।
To define the unit by a measurable side-length in field conditions; it supports consistent area computation and prevents manipulation of irregular plots.