Two flat surfaces are exposed to a uniform, horizontalmagnetic field of magnitude 0.58 T. The first surface is tilted atan angle of 21° from the horizontal, and a net magnetic flux of6.4 x 10-4 Wb passes through it. The same net magneticflux passes through the second surface. (a) Determine the area of the first surface. (b) Find the smallest possible value of the area of the secondsurface.