You could argue that "B", "D" and lowercase "t" also have perpendicular lines but they are not straight lines so I don't know if those count.
T p h
W
There are letters in the alphabet with both parallel and perpendicular lines. In alphabetical order, they are E, F, and H. If the joining point can be considered perpendicular and parallel, then B, D, P, and R also match the criterion.
The letter's "H", "I", "E", and "F".
6 uppercase letters: E F G H L T1 lowercase letter: t
Yellow
T p h
W
The capital letters that intersect but do not form perpendicular line segments include letters like "A," "X," and "K." In these letters, the lines cross each other but do not create right angles. For example, the diagonal lines of the "A" meet at the apex without forming a perpendicular intersection with the horizontal bar.
M
t
There are letters in the alphabet with both parallel and perpendicular lines. In alphabetical order, they are E, F, and H. If the joining point can be considered perpendicular and parallel, then B, D, P, and R also match the criterion.
E F and H
The letters A, K, M, N, R, V, W, Y, and Z all have lines in them that are not perpendicular.
N, M and H
The letter's "H", "I", "E", and "F".
Perpendicular lines are ones that make right angles when they meet. For instance the letters T H E and L are all made of perpendicular line segments.