Question

Align the adjacent side of a right triangle with the vector and the hypotenuse along a coordinate direction with theta as the included angle.
Align the hypotenuse of a right triangle with the vector and an adjacent side along a coordinate direction with theta as the included angle.
Align the opposite side of a right triangle with the vector and the hypotenuse along a coordinate direction with theta as the included angle.
Align the hypotenuse of a right triangle with the vector and the opposite side along a coordinate direction with theta as the included angle.