Maths >> Vector and 3-D >> Plane Others

Is area always a vector quantity or it can be a vector quantity?

Joshi sir comment

generally it is scalar but in the measurement of flux through a surface it is considered a vector perpendicular to the surface with same magnitude

Maths >> Vector and 3-D >> Plane AIEEE

line AB intersects CD internally in the ratio K : 1  where K is undefined , these line may be  ( 1) concurrent  ,   (2)  intersecting ,  (3) skew  <  (4)  all of these .     explain plese   ?