The question reads:
Due to previous tunneling experience, the firm estimates a cost of $18,000 per meter for boring through this type of rock and constructing the tunnel according to required specifications. If management insists on a 30% profit, what will be their minimum bid to the nearest thousand.
The sides are 1200m, 1600m, 330.3m
Attached is the picture of the triangle that I worked out.
If someone can explain how to continue on from here that would be fantastic.
I had to use the cosine law to get the 330.3m, so I thought it would be relevant to post here.