Question

A lighthouse is located on an island 350 feet from the shore of the mainland as shown. If x=0.41 rad, what is D?

Now, let X= 0.41

Answer 1

Answer: d = 382

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Work Shown:

d = 350*sec(x)

d = 350*(1/cos(x))

d = 350*(1/cos(0.41))

d = 381.62910632113

d = 382

Make sure your calculator is in radian mode.