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A polygon is a generic term describing a closed plane figure bounded by 3 or more straight line segments. It need not have any perpendicular lines.
Normally none but it does have perpendicular lines that meet at right angles.
Octagons have no perpendicular lines.
An octahedron has 7 perpendicular lines.
Each of the eight line segments is perpendicular to 2 line segments. So there are 8 pair in all.
A trapezium has no right angles therefore there are no perpendicular lines. If it had perpendicular lines, it would be a square or rectangle.
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A rectangle has four 90º (right) angles. A right angle makes lines or line segments perpendicular to each other.
A polygon is a generic term describing a closed plane figure bounded by 3 or more straight line segments. It need not have any perpendicular lines.
Normally none but it does have perpendicular lines that meet at right angles.
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if the triangle is a right angle it has 2 perpendicular line segments.
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4, one set at each corner.
Octagons have no perpendicular lines.
There are two parallel line segments in a hexagon. There are also four 90 degree angles that are perpendicular to one another.