How many dimensions does a 45 degree angle have

Two

"Positive and negative angles

In a two-dimensional Cartesian coordinate system, an angle is typically defined by its two sides, with its vertex at the origin. The initial side is on the positive x-axis, while the other side or terminal side is defined by the measure from the initial side in radians, degrees, or turns."

Any angle is in 2 dimensions when you measure

the answer is a if my teacher taught me correct