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.
In the upper case Roman alphabet they are: C, I, J, O and S. However, in the case of C, O and S, there are parts of the curved segments which are parallel.
E,f,h,i,n
The letter's "H", "I", "E", and "F".
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 - H
Yellow
In the upper case Roman alphabet they are: C, I, J, O and S. However, in the case of C, O and S, there are parts of the curved segments which are parallel.
t
N, M and H
E F and H
There are no English words that contain all the letters of the alphabet.
The letter's "H", "I", "E", and "F".
The letters A, K, M, N, R, V, W, Y, and Z all have lines in them that are not perpendicular.
E is the only letter.