A planar coil of wire has a single turn. The normal to this coil is parallel to

Question:

A planar coil of wire has a single turn. The normal to this coil is parallel to a uniform and constant (in time) magnetic field of 1.7 T. An emf that has a magnitude of 2.6 V is induced in this coil because the coil's area A is shrinking. What is the magnitude of DA/Dt, which is the rate (in m2/s) at which the area changes?