staywithme
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Report Thread starter 4 years ago
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Hello all,

I've been trying to do some maths revision and in doing so have discovered that I have no idea about Trigonometry, so I have been doing some Trig revision.

I got stuck on questions 8, 9 and 10 on this worksheet.
http://cdn.kutasoftware.com/Worksheets/Alg2/Law%20of%20Cosines.pdf

If anyone could please provide me a solution, I would be very grateful.
How do you find an angle when you only have 2 sides?!?!

Thanks!
Ellie
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ghostwalker
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Report 4 years ago
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(Original post by staywithme)
...
Use the cosine rule to get the third side.

Then the sine rule to get your desired angle.
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