0:00
    30
    When graphed in the -plane, 3 points, , , and , form angle . If point has the coordinates of , point has the coordinates of , and point has the coordinates of . What is a possible angle measure, in radians, of ?
    A
    B
    C
    D

    SAT® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this product.