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krek1111 [17]
3 years ago
12

In triangle ABC, a = 5.3 cm, b = 4.8 cm, and c = 9.2 cm.

Mathematics
1 answer:
suter [353]3 years ago
8 0

Answer:

a= 25.69, b=23.12, c=131.119

Step-by-step explanation:

cosa=\frac{B^{2} +C^{2} -A^{2} }{2BC} \\        =\frac{79.59}{88.32} \\       a = 25.69

cos(b)=\frac{A^{2} +C^{2} -B^{2} }{2AC} \\        =\frac{89.69}{97.52}\\      b=23.12\\c=180-23.12-25.69\\   = 131.119

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