45 degrees are pi/4 radians. You can verify this with a unit circle.
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180° = π radians → 45° = π × 45°/180° radians = π/4 radians
45 degrees (+/- 180k degrees for any integer k) or pi/4 radians (+/- pi*k radians for any integer k).
45 degrees or 0.785398163. The first part is pi radians divided by 4, not quite the same thing.
45 degrees. 360 degrees divided by 8 is 45.
45 degrees