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Pani-rosa [81]
3 years ago
13

The picture shows a triangular island.

Mathematics
1 answer:
Elenna [48]3 years ago
8 0
For a right triangle, we have he advantage of using the trigonometric functions like cosine and sine. 

If you use cosine function:
cos45 = adjacent/hypotenuse
cos 45 = b/c
c = b/cos 45

If you use sine function:
sin 45 = opposite/hypotenuse
sin 45 = a/c
c = a/sin45

From the choices, the answer is <span>b over cos 45 degrees</span>
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Answer:

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