Step-by-step explanation:
It is given that,
Magnitude of magnetic field, B = 0.35 T
Side of square, a = 0.2
Area of square,

Angle between field and normal of the surface is 35 degrees. So, the angle between the magnetic field and area is,

We need to find the flux through the loop. Magnetic flux is given by :




or

Hence, this is the required solution.