G
all letters
g y h
Convex polygons with congruent sides and congruent angles are called regular polygons.
None in the Roman alphabet.
Sure
None. They either consist of curved sides or are not closed shapes (have lines "sticking out").
It depends on the alphabet:Latin = NONEGreek = ΔCyrillic = NONEHebrew = ם (depending on the font)Arabic = NONEKorean = NONEThere are also a few chinese characters that can loosely be described as polygons, such as: 凸凹口囗
Regular polygons are always convex by definition.
The letters X L T
They are both convex polygons.
A concave polygon has at least one interior angle greater than 180 degrees. A convex polygon has none of those.
6,776 growing, including convex and concave polygons, constructible polygons, cyclic polygons, and so much more