Can you associate vectors with?

(i) The length of a wire bent into a loop

(ii) A plane area

(iii) A sphere

(i) We cannot associate a vector with the length of a wire bent into a loop.

(it) We can associate a vector with a plane area.

Such a vector is called area vector and its direction is represented by outward drawn normal to the area.

(iit) We cannot associate a vector with volume of sphere, however, a vector can be associated with the area of sphere.