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The letter's "H", "I", "E", and "F".

Q: Which letters have both parallel and perpendicular lines?

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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.

Both!! gezz that's easy :P

They are E and H because both have perpendicular lines that meet at right angles which is 90 degrees

In a square adjacent sides are perpendicular to each other and opposite sides are parallel to each other.

To indicate that a pair of lines are parallel you mark them both with an arrow. If there is another pair of parallel lines on the same shape you mark those with a double arrow.

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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.

No, you can't have two lines that are both parallel and perpendicular.

As far as we know, two lines can be perpendicular, or they can be parallel, but they can't be both.

It has both

the parallel lines never intersect each other but they both intersect the line they are perpendicular to

Parallel lines run in the same direction. If they are intersected by one line and that line is perpendicular to both, then it proves that the lines run parallel to each other.

Since two parallel lines never intersect, they cannot be perpendicular to each other because perpendicular lines intersect and form angles of 90⁰.

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Rectangles are made up of 2 sets of parallel lines, which are perpendicular to one another.

Shapes are not parallel or perpendicular. Lines are.Every side of a rectangle is parallel to the side opposite it,and perpendicular to both of the sides next to it.

A square has both parallel and perpendicular symmetry. It is composed of two sets of parallel lines that meet at perpendicular angles.