2 years ago

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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