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Hagrid
Answered

The picture shows a triangular island.

Which expression shows the value of c?


b over sin 45 degrees


b over cos 45 degrees


a cos 45°


a sin 45°

The picture shows a triangular island. Which expression shows the value of c? b over sin 45 degrees b over cos 45 degrees a cos 45 a sin 45 class=

Verified Answer :

MissPhiladelphia

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 b over cos 45 degrees

ShaniahPoweska

Answer:

b over cos 45 degrees...

Step-by-step explanation:

That is the answer. I know cause i took the test and got it right

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