The word "triangles" can be read as a single word. It consists of a specific arrangement of letters that form the term used to describe a three-sided polygon. If you meant how many people can read the word, virtually anyone who can read English can recognize and pronounce it.
no triangles
it has 13 triangles
There are no triangles.
All triangles have exactly 3 sides. That is what the word triangle means, a geometrical figure having 3 angles and 3 sides. Always 3.
Two triangles
there are 27 triangles in a triangle
The word "read" has three phonemes: /r/ /ee/ /d/.
Read a book
There are 15 triangles in a 17-agon
15 triangles!!!!!!!!!!
no triangles
it has 13 triangles
There are no triangles.
15 triangles
depends on what size triangles and what kind of triangles?
All triangles have exactly 3 sides. That is what the word triangle means, a geometrical figure having 3 angles and 3 sides. Always 3.
A heptagon has 5 triangles.