Question

1. cos c

a) \frac{7}{24}
b) \frac{24}{25}
c) \frac{7}{25}
d) \frac{24}{7}

Explanation:

Step1: Find the adjacent side and hypotenuse relative to angle \( C \)

In the right - triangle, for angle \( C \), the adjacent side \( = 7 \), and the hypotenuse \( = 25 \)

Step2: Use the cosine formula \( \cos C=\frac{\text{adjacent}}{\text{hypotenuse}} \)

\( \cos C=\frac{7}{25} \)

Answer:

D. \( \frac{7}{25} \)