# Law of Sines and Cosines help?! please?

In triangle GHI, m < G = 109°, m < I = 15° and h =5. Find g to the nearest tenth.

A. 5.7

B. 4.4

C. 18.3

D. 1.4

In triangle JLK, m < K = 87°, k = 9, and l = 6.6. Find j to the nearest tenth.

A. 12.3

B. 12.4

C. 6.5

D. 8.8

A. 5.7

B. 4.4

C. 18.3

D. 1.4

In triangle JLK, m < K = 87°, k = 9, and l = 6.6. Find j to the nearest tenth.

A. 12.3

B. 12.4

C. 6.5

D. 8.8

Update:
I have no idea how to use that formula! can someone at least demonstrate it?

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