This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Quadrilteros Classificaao. pt Esquema representando as classificaes de quadilteros Paint ArthNegri math Quadrilateral type Hasse diagrams Diagrams in Portuguese
Page 2023 Free-images.com. All images are Public Domain