Determinant magnetic flux crossing a frame with an area of 80 km² placed

Determinant magnetic flux crossing a frame with an area of 80 km² placed in a magnetic field with an induction of 50 T genus with an angle of 30 °

S = 80 km ^ 2 = 80 * 10 ^ 6 m ^ 2.
B = 50 T.
α = 30 °.
F -?
The magnetic flux Ф of the magnetic field is determined by the formula: Ф = В * S * cosα.
Where B is the magnetic induction, S is the area that the magnetic induction penetrates, α is the angle between the direction of the magnetic induction and the area of the frame.
Ф = 50 T * 80 * 10 ^ 6 m ^ 2 * cos30 ° = 3465 * 10 ^ 6 Wb.
Answer: Magnetic flux Ф = 3465 * 10 ^ 6 Vb.