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mr Goodwill [35]
2 years ago
14

Can anyone explain step by step how to get this answer? Will mark branliest!!

Mathematics
2 answers:
Y_Kistochka [10]2 years ago
4 0

Answer:

Step-by-step explanation:

28°

guajiro [1.7K]2 years ago
3 0

Answer:

Step-by-step explanation:

A = cos⁻¹((12.5² + 30.5² - 20.3²) / (2(12.5)(30.5)))

A = cos⁻¹((156.25 + 930.25 - 412.09) / (2(12.5)(30.5)))

A = cos⁻¹(674.41 / 762.5)

A = cos⁻¹0.88447213...

A = 27.8133685...

A = 27.8°

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