How do you get the answer x=2.05, 2.05 from this equation?

I uploaded the answer to a file hosting. Here's link:

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x = cos (47) = Pi/3, cos 47 = X/3

Step-by-step explanation:

x = 2.05, 2.05 (2.05)²

it would be:

c.parallelogram.

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step-by-step explanation: