What is angle b? round the value to the nearest degree

Step-by-step explanation:

For this exercise you need to use the Inverse Trigonometric function arccosine, which is defined as the inverse function of the cosine.

Then, to find an angle α, this is:

In this case, you can identify that:

Then, substituting values into and evaluating, you get that the measure of the angle "B" to the nearest degree, is:

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step-by-step explanation:

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step-by-step explanation:

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