Many letters of the English alphabet have perpendicular lines. Perpendicular lines are like two lines making one corner of a square. So any letter that has two lines joined like the corner of a square has perpendicular lines.
These letters have right angles: E, F, f, H, I, L T, t, and sometimes X, x.
Keep in mind that the angles of the lines making the letters is effected by the font and whether or not the letter is italicized. For example, E is made of three perpendicular lines, but this 'E' has no perpendicular lines.
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The letter "T" has a perpendicular line. In geometry, perpendicular lines are two lines that intersect at a 90-degree angle. In the case of the letter "T," the vertical line and the horizontal line intersect at a right angle, making them perpendicular to each other.
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uyuuuq3ryu4tgyttytdyuryruytyhny2yu6yuy6
The letter - H
The segments of a square are perpendicular. Take the letter " T " for example. Where the bottom line connects the the top line forms a 90 degree angle, which makes them two lines perpendicular.
If the line has a slope of 2, then the perpendicular line has a slope of -1/2. The slope of a perpendicular line is the negative reciprocal. Another example would be if the slope of a line is -1/4, then the slope of the perpendicular is 4.
The perpendicular bisector of a line segment AB is the straight line perpendicular to AB through the midpoint of AB.
'altitude' or perpendicular. If on line is the base (horizontal) line, then the line that is a 90 degrees to it is the perpendicular/altitude.