The letters T and L are formed as asked.l and t from fiona1234
C. I. H. F.
The letter - H
5 line segments
5 line segments
Oblique
None, as far as I can see. Which, given that I cannot see any triangle, is not saying much!
a line that is neither verticle or horizontal
An oblique line can be diagonal, sloping or slanted. It is not vertical, horizontal, parallel or perpendicular.
8
Oblique is neither vertical nor horizontal to a given line or surface
AKMNRVWXYZ
I
Letters that have a vertical line symmetry: WTYUIOAHXVM Letters that have a horizontal Line symmetry: EIODHKCB
E
Z
Letters that have parallel line segments are H, E, F, M, and N