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What is the side length of AB
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What is the side length of AB

What is the side length of AB-example-1
User Dewang
by
8.0k points

1 Answer

1 vote

Answer:

AB ≈ 8.1

Explanation:

using the cosine ratio in the right triangle

cos40° =
(adjacent)/(hypotenuse) =
(AC)/(AB) =
(6.2)/(AB) ( multiply both sides by AB )

AB × cos40° = 6.2 ( divide both sides by cos40° )

AB =
(6.2)/(cos49) ≈ 8.1 ( to the nearest tenth )

User AmooAti
by
8.0k points
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