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Whats his mistake and the correct awnser

Whats his mistake and the correct awnser
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3 votes
Whats his mistake and the correct awnser

Whats his mistake and the correct awnser-example-1
User Micah Smith
by
8.5k points

1 Answer

3 votes

Answer:

θ ≈ 35.7°

Explanation:

His mistake was in using the wrong trig. ratio

Instead of using cosine he should have used the sine ratio

sinθ =
(opposite)/(hypotenuse) =
(7)/(12) , then

θ =
sin^(-1) (
(7)/(12) ) ≈ 35.7° ( to the nearest tenth )

User Nick Turner
by
7.8k points
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