Respuesta :

Answer:

45.2°

Step-by-step explanation:

a = 14

b = 11

c = 10

The Law of Cosines is given as:

arccos (a²+b²﹣c²/2ab)

In this above question, to find m

= arccos(11²+14²﹣10²/2·11·14)

= 45.20717°

Approximately = 45.2°

Option d is the correct answer

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