By A Mystery Man Writer
File:山-oracle.svg - Wiktionary, the free dictionary
equilateral triangle - Wiktionary, the free dictionary
File:tawa - sitelen pona in Sonja Lang's handwriting.svg - Wiktionary
egyenlő szárú háromszög - Wiktionary, the free dictionary
triangular pyramid - Wiktionary, the free dictionary
File:Cape Triangular Postage Stamp.jpg - Wiktionary, the free dictionary
devil - Wiktionary, the free dictionary
Fano plane - Wiktionary, the free dictionary
Equilateral triangle : les meilleures images libres de droits, photos de stock et illustrations, triangle
Argyle (pattern) - Wikipedia
recursion - Wiktionary, the free dictionary