A group of college students is learning to navigate for an upcoming survival trip. On a map, they have been given three points at which they are to check in. The map also shows the distances between the points. However, in order to navigate, they need to know the angle measurements. Calculate the angles for them. OA (22.5)2 = (32.5)2+(45.9)2-2(32.5)(45.9)cos U OB. (32.5) (22.5)+(45.9)²-2(22.5)(45.9)cos U OC. (22.5)2-(32.5) + (45.9²+2(32.5)(45.9)cos U OD. (32.5) (22.5) (45.9)+(22.5)45.9)cos U Obtain an equation that uses the law of cosines to find the angle U of the triangle. Choose the correct answer below. TA 22.5 km (Round to one decimal place as needed.) (Round to one decimal place as needed.) (Round to one decimal place as needed.) U

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