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Scilla [17]
2 years ago
11

MY

Mathematics
1 answer:
Pie2 years ago
4 0

Answer:

<B = 56.25°

Step-by-step explanation:

Reference angle = B

Hypotenuse = AB = 9

Adjacent = BC = 5

Applying trigonometric ratio:

cos (B) = \frac{adj}{hyp}

cos (B) = \frac{5}{9}

B = cos^{-1}(\frac{5}{9})

B = 56.25° (nearest hundredth)

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