Hi all,

I just have some basic trig behind me, and i would like some understanding on how to do some calculations.

I will insert an image as my basic model.

Being that the included angle is 155 degrees and the 7 inches and 4 inches are constants.

I would like to know how to claculate for:

angle A

angle B

and "L"

in 3 different calculations.

I would really appreciate some help on this and keep in mind, that I only have basic trig

Thanks