Hello, scherz0!

Could anyone please tell me how to solve the following

problem without knowledge of dot product or cross product?

1. If and , find .

It can be solved with just the Law of Cosines.

Code:D * * * * * * * * * * C * * * * * 30 * 23 * * * * * * * 119.6° * * A * * * * * * * * * * B 11

I used this variation to find angle A.

. .

Then in parallelogram

Code:D * * * * * * * * * * C * * * * * * * * * 23 * * * * * 60.4° * A * * * * * * * * * * B 11

In

Therefore: .