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## Homework Statement

Let vectorB= 5.45 m at 60°. Let C have the same magnitude as A and a direction angle greater than that of A by 25°. Let B·A = 32.4 m2 and B·C = 35.1 m2. Find the magnitude and direction of A .

## Homework Equations

A·B=MagAxMagBcosθ

## The Attempt at a Solution

I just have one problem here. What do I use as theta? do i do cos 60?

magnitude of b is 5.45 and that of a is unknown but what about the angle?

thanks