alleryIn a right triangle, for an acute angle θ, cos θ is defined as:
Ahypotenuse / adjacent side
Badjacent side / hypotenuse
Copposite side / hypotenuse
Dadjacent side / opposite side
Answer & Solution
Correct answer: B. adjacent side / hypotenuse
cos θ = side adjacent θ / hypotenuse.
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