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adoni [48]
3 years ago
8

For each triangle, find the missing side length to the nearest tenth. :

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0
We can use trigonometry.  The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse.  As cos(15) is about .966, we get 19.32 as the side we are looking for.
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I need the answer and if you would please explain step by step
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