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KonstantinChe [14]
3 years ago
15

Find the length of A? Anyone know?....

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0
A² = b² + c² - 2bcCos A
a² = 11² + 13² - 2(11)(13)Cos(108)
a² = 378.38
a = √378.38
a = 19.45

Answer: 19.45
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