Question

Help with trig

Answer 1

@goformit100 @inkyvoyd @swissgirl

Answer 2

For the rest of the first one, I assume use cos to get theta?

Answer 3

No you would not use the cosine identity for this. You have the side opposite and the side adjacent to the angle. Which identity uses those?

Answer 4

tan?

Answer 5

Yes. That's the right one. How do you set it up?

Answer 6

To find the angle I would use tan-1
4/7

Answer 7

Yes, you would! Do you know how to go about that on your calculator?

Answer 8

Yes. I got 29.7449

Answer 9

I have one more question.

Answer 10

That's right. Good job! What else do you have?

Answer 11

Why did my instructor say use law of sines on this one?