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In 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.
Related questions
Ratios are also defined for angles of measure 0 and:If the sides about the right angle are 3k and 4k, the hypotenuse is:tan A can be written as sin A divided by:The identity cosec2 A equals 1 plus:The identity sec2 A minus tan2 A equals:Which identity is proved first in this chain?An equation true for all values of the angle is called an:The value of cosec 30 degrees is: