Find the component form of vector v if v 3 with direction a

Find the component form of vector v if |v| = 3 with direction angle 330 degree. (-3 Squareroot 3/2, -3/2) (-3/2, -3 Squareroot 3/2) (3/2, 3 Squareroot 3/2) (3 Squareroot 3/2, -3/2) Find the area of a triangle whose sides have lengths of 10, 11, and 12 feet. 51.5 sq. feet 55 sq. feet 66 sq. feet 592 sq. feet

12) option b) is correct.

v = (-3/2, -3*sqrt(3)/2) =======> IvI = 3, angle = 330 from +x-axis