Answer:
cos S = 7/25
Step-by-step explanation:
cosine is the ratio of the side adjacent to angle S and the hypotenuse.
use the pythagorean Theorem to or a Pythagorean triple to find the third side of the triangle It is a 7-24-25 triple or
b²=c²-a²
b=√c²-a²
b=√625-196
b=√49=7
cos S = 7/25
