# How to Find Perpendicular Vectors in 2 Dimensions?

Finding perpendicular vectors in 2 dimensions is very similar to finding the equation of perpendicular lines, except you are given the slope!

http://www.wikihow.com/Find-Perpendicular-Vectors-in-2-Dimensions

## How to Find Perpendicular Vectors in 3 Dimensions?

In order to find perpendicular vectors in three dimensions, you need to know how to find the determinant of a matrix and how to find the cross product of two vectors.

http://www.wikihow.com/Find-Perpendicular-Vectors-in-3-Dimensions

## How to Find the Angle Between Two Vectors?

Mathematicians and physicists often need to find the angle between two given vectors. While it is easy to find the angle between two vectors in the same plane by drawing a sketch, finding the angle...
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http://www.wikihow.com/Find-the-Angle-Between-Two-Vectors

## How to Find a Perpendicular Line?

If a line intersects another line at a 90-degree angle, they are perpendicular. You may have to find a perpendicular line as a part of a high school or college algebra or geometry course. You also ...
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http://www.ehow.com/how_8274592_perpendicular-line.html

## How to Find the Perpendicular of Two Angles?

Finding the perpendicular angle to two vectors is a crucial part to linear algebra. It can be applied to many other problems, including defining the plane formed by the two vectors and determining ...
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http://www.ehow.com/how_8388390_perpendicular-two-angles.html