Completion Complete each statement using any ofthe words below: WORD BANK: [ point, line, plane, skew, intersection, collinear, normal, scalar, vector] 18. A 1vector perpendicular to a line is called a vector. 19. Ifthe dot product of the direction vector of a line and. the normal of a plane is not equal to zero, then the intersection of the line and the plane is a 20. Two planes are parallel if their normals are 21. If the normals of two planes are not collinear, then the planes will always intersect in a