Given below are two statements. One is labelled as Assertion (A) and the other is labelled as reason (R). 

A polar molecule has non-zero dipole moment and a nonpolar molecule has zero dipole moment.
Hence, The dipole moment helps to predict whether a molecule is polar or nonpolar.

The dipole moment and the geometry of molecule are correlated. Different geometries will result in different values of dipole moment. Hence, from the value of the dipole moment, the geometry of the molecule can be predicted.