Question

question 3 (fill - in - the - blank worth 1 points) (05.02 lc) find the cosine ratio of angle θ. clue: use the slash symbol (/) to represent the fraction bar, and enter the fraction with no spaces

Explanation:

Step1: Recall cosine ratio formula

The cosine of an angle $\theta$ in a right - triangle is given by $\cos\theta=\frac{\text{adjacent}}{\text{hypotenuse}}$.

Step2: Identify adjacent and hypotenuse

For angle $\theta$ in the given right - triangle, the side adjacent to $\theta$ is $AC = 5$ and the hypotenuse is $BC=13$.

Step3: Calculate cosine ratio

$\cos\theta=\frac{5}{13}$

Answer:

$\frac{5}{13}$