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Using the cosine rule the three angles are as follows:-

x = 75.16700977 = 75o 10' 1.24''

y = 65.6309069 = 65o 37' 51.26''

z = 39.20208333 = 39o 12' 7.5''

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Q: What are the three angles in triangle xyz when xy equals 3.4 cm yz equals 5.2 cm and xz equals 4.9 cm?
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