B = 54°, c = 15, a =_?___ (Round answers to the nearest hundredth.)

Daniel Stanley asked Sep 15, 2023

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24 votes

B = 54°, c = 15, a =_?___ (Round answers to
the nearest hundredth.)

Daniel Stanley asked Sep 15, 2023

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10 votes

Answer:

a ≈ 8.82

Explanation:

using the cosine ratio in the right triangle

cos54° =
(adjacent)/(hypotenuse) =
(BC)/(AB) =
(a)/(15) ( multiply both sides by 15 )

15 × cos54° = a , then

a ≈8.82 ( to the nearest hundredth )

Alex Booker answered Sep 20, 2023

3.1k points

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