What Google Knows
In geometry, a vertex is a point where two or more curves, lines, or edges meet or intersect. As a consequence of this definition, the point where two lines meet to form an angle and the corners of polygons and polyhedra are vertices.
Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, bool given in /home/adachis/ghostme.at/word-helper/index.php:375
Stack trace:
#0 {main}
thrown in
/home/adachis/ghostme.at/word-helper/index.php on line
375