What is the angle between `vec(A)` and `vec(B)`, if `vec(A)` and `vec(B)` are the adjacent sides of a parallelogram drawn from a common point and the area of the parallelogram is `AB//2`?

Explanation

Area of paralleloogram `= | vec A xx vec B|`
`=AB sin theta 1/2 AB (Given )`
:. Sin theta =1/2 sin 30^(@)` or ` theta =30^(@)`.