contoh kalimat triangular number

• In his Basilica at Fano, he uses ratios of small integers, especially the triangular numbers (1, 3, 6, 10, ...) to proportion the structure into (Vitruvian) modules.
  Pada Basilika di Fano, dia menggunakan rasio bilangan bulat kecil, terutama bilangan segitiga (1, 3, 6, 10, ...) untuk proporsi struktur menjadi modulus (Vitruvian).