Question

Consider the following right triangle. Select the ratio equivalent to cos(C).

Answer 1

cos (C) = (2x + 5) / (3x + 2)

Explanation:

The cosine ratio is cos (θ) = adjacent side/hypotenuse.

When C is θ, BC is the adjacent side and AC is the hypotenuse (always opposite the right angle).

Since BC =2x + 5 and AC = 3x + 2, cos (C) = (2x + 5) / (3x + 2)