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merriam-webster.com
https://www.merriam-webster.com/dictionary/perpend…
PERPENDICULAR Definition & Meaning - Merriam-Webster
vertical, perpendicular, plumb mean being at right angles to a base line. vertical suggests a line or direction rising straight upward toward a zenith. perpendicular may stress the straightness of a line making a right angle with any other line, not necessarily a horizontal one.
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wikipedia.org
https://en.wikipedia.org/wiki/Perpendicular
Perpendicular - Wikipedia
A line is said to be perpendicular to a plane if it is perpendicular to every line in the plane that it intersects. This definition depends on the definition of perpendicularity between lines.
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cuemath.com
https://www.cuemath.com/geometry/perpendicular/
Perpendicular - Meaning, Examples | Perpendicular Lines Definition
A perpendicular is a straight line that makes an angle of 90 ° with another line. 90 ° is also called a right angle and is marked by a little square between two perpendicular lines as shown in the figure given below.
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splashlearn.com
https://www.splashlearn.com/math-vocabulary/geomet…
What are Perpendicular Lines? Definition, Properties, Examples
A perpendicular is a line that intersects another line at a right angle. Learn the definition of perpendicular, symbol, properties, real life examples, and more.
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cambridge.org
https://dictionary.cambridge.org/dictionary/englis…
PERPENDICULAR | English meaning - Cambridge Dictionary
PERPENDICULAR definition: 1. at an angle of 90° to a horizontal line or surface: 2. at an angle of 90° to another line or…. Learn more.
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mathsisfun.com
https://www.mathsisfun.com/perpendicular-parallel.…
Perpendicular and Parallel - Math is Fun
Perpendicular means at right angles (90°) to. The red line is perpendicular to the blue line here: Here also: (The little box drawn in the corner, means "at right angles", so we didn't really need to also show that it was 90°, but we just wanted to!) Try for yourself:
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mathnasium.com
https://www.mathnasium.com/blog/perpendicular-guid…
What Does Perpendicular Mean? A Complete Overview
In this guide, we’ll take a closer look at what perpendicular means in math and geometry through clear definitions, easy-to-follow visuals, side-by-side comparisons, a fun little quiz, and answers to the most common questions students ask.
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math.net
https://www.math.net/perpendicular
Perpendicular - Math.net
Lines, rays, line segments, and planes can be perpendicular. Perpendicular lines, rays, and line segments are lines or parts of lines that meet or cross at right angles. If lines l and m are perpendicular to each other, we can write l⊥m where "⊥" is the symbol for perpendicular.
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dictionary.com
https://www.dictionary.com/browse/perpendicular
PERPENDICULAR Definition & Meaning | Dictionary.com
Intersecting at or forming a right angle or right angles. A line or plane that is perpendicular to a given line or plane.
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doodlelearning.com
https://doodlelearning.com/maths/skills/geometry/p…
What are perpendicular lines? Meaning, equation and examples ...
The definition of perpendicular is a straight line at an angle of 90° to a given line, plane or surface. The word ‘perpendicular’ originated from the Latin word ‘perpendicularis’, meaning a plumb line.