- #1
- 1,009
- 0
Since any vector that is perpendicular to the plane will do, it doesn't matter if they calculate PQ X PR or PR X PQ, which will just point the opposite direction.Miike012 said:How did they know to do PQ cross PR instead of PR cross PQ?
Miike012 said:And why did they not choose RP cross RQ?
Look at picture.
A vector perpendicular to a plane is a vector that is at a 90-degree angle to the plane and intersects it at a single point.
To find a vector perpendicular to a plane, you can use the cross product between two non-parallel vectors that lie on the plane. The resulting vector will be perpendicular to both of the original vectors and therefore perpendicular to the plane.
Yes, a vector can be perpendicular to more than one plane as long as it is at a 90-degree angle to both planes.
No, a vector perpendicular to a plane is not unique. There are infinite possible vectors that can be perpendicular to a given plane.
Finding a vector perpendicular to a plane is important because it can be used to solve various mathematical and scientific problems, such as determining the direction of motion for an object in three-dimensional space or calculating the normal force on an object resting on a plane.