Help with checking work on law of sines and cosines

Question

darkbluechocobo · Answer

A triangular plot of land has sides of lengths 320 feet, 250 feet, and 80 feet. Approximate the largest angle between the sides to the nearest tenth of a degree.

darkbluechocobo · Answer

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anonymous · Answer

If the triangle is a right triangle, you won't need the law of cos.

anonymous · Answer

In this case, simply use soh cah toa.

anonymous · Answer

The angle on the top, $$\sin(o/h)$$

anonymous · Answer

Know thing that, what would you plug in to find that angle? *Remember that you are looking for an angle, so you will use the inverse of sine*

darkbluechocobo · Answer

Sorry I am back now. It wasnt loading :C

darkbluechocobo · Answer

@bmannn13 It says a triangular plot of land i just drew as a right

darkbluechocobo · Answer

@jdoe0001 would we use cosine because we dont have any angles to work with for sine