Q:
# What is an orthogonal vector?

**An orthogonal vector is a vector that is at an angle of 90 degrees, or perpendicular, to another vector.** Up to three vectors can be mutually orthogonal to each other in a three-dimensional space.

To check if two vectors are orthogonal, take their dot product. If the dot product of two vectors is equal to zero, then they are orthogonal to each other. Alternatively, taking the cross product of two vectors always yields a third vector that is orthogonal to the first two. This is always true unless that cross product is equal to zero, in which case the first two vectors do not intersect and are parallel instead.

Learn more about Geometry-
Q:
## How do you measure angles?

A: Use a protractor to measure the number of degrees in an angle. Place the protractor over the angle so that one line goes along the protractor's zero degree... Full Answer >Filed Under: -
Q:
## How do you find the area of a sector?

A: To find the area of a sector, divide the angle of the sector by 360 degrees, then multiply the answer by pi and the square of the radius. You need to know ... Full Answer >Filed Under: -
Q:
## What is the definition of the term "vector quantity"?

A: A vector quantity is a quantity of something which possesses both magnitude and direction. Magnitude is simply the size or amount of the quantity. For exam... Full Answer >Filed Under: -
Q:
## What is a co-interior angle?

A: A co-interior angle is formed when two lines are intersected by a third line in two distinct points. The four angles that lie on the inside of the two line... Full Answer >Filed Under: