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Orthogonality - Wikipedia


The line segments AB and CD are orthogonal to each other. In mathematics, orthogonality is the relation of two lines at right angles to one another ...

Perspective Drawing - One Point Perspective


There are two types of construction lines used in this perspective drawing: 1) ORTHOGONAL LINES which we have drawn in RED. 2) TRANSVERSAL LINES  ...

orthogonal lines Definition - Creative Glossary


Definition of orthogonal lines at CreativeGlossary.com.

Slope: Parallel and Perpendicular Lines - Purplemath


Parallel lines and their slopes are easy. Since slope is a measure of the angle of a line from the horizontal, and since parallel lines must have the same angle, ...

Lines in a plane - Orthogonality; Distances - Scarlet


Take two lines l : ax + by + c = 0 and l' : a'x + b'y + c' = 0. Direction ... 3x + 5y - 12 = 0 and 5x - 3y - 55 are orthogonal.

Perpendicular lines. (Coordinate Geometry) - Math Open Reference


When two lines are perpendicular to each other (at right angles or 90°), their slopes have a particular relationship to each other. If the slope of one line is m then ...

Slopes of Perpendicular Lines


Answer: What is the slope of ( 2, 5 )<sup>T</sup> ? m1 = 5/2; What is the slope of ( -5, 2)<sup>T</sup> ? m 2 = -2/5; What is the dot product? (2)(-5) + (5)(2) = 0; What is m1 times m2?

Perpendicular and Parallel - Math is Fun


Perpendicular and Parallel. Perpendicular. It just means at right angles (90°) to. The red line is perpendicular to the blue line in both these cases: ...

Parallel and Perpendicular Lines and Planes - Math is Fun


OK, an illustration of a plane, because a plane is a flat surface with no thickness that extends forever. But here we show planes with edges just to make the ...

Perpendicular Lines 1 | Coolmath.com


Let's graph these lines: * I'm using y = mx + b stuff to graph them!

More Info

Orthogonal Lines -- from Wolfram MathWorld


Orthogonal Lines. Two or more lines or line segments which are perpendicular are said to be orthogonal. ... CITE THIS AS: Weisstein, Eric W. "Orthogonal Lines.

What Are Orthogonals? - Drawing Glossary Definition


In Linear Perspective drawing, the diagonal lines that can be drawn along ... Orthogonal is a term derived from mathematics, meaning 'at right angles' and ...

Straight-Line Equations: Parallel and Perpendicular Lines


Demonstrates how to find parallel and perpendicular equations through a given point.