Siddhantatattvaviveka 3.175

Siddhāntatattvaviveka 3.175

laṅkāyāṃ śūnyamakṣāṃśā lambāṃśāḥ khāṅgasaṃmitāḥ
arkendavo'tha tūlāṃśā merau khaṃ lambabhāgakāḥ