Respuesta :

Cosine is adjacent/hypotenuse, so the answer is A: 25/24.

Remember this: SohCahToa
Soh- Sine=opposite/hypotenuse
Cah- Cosine=adjacent/hypotenuse
Toa- Tangent=opposite/adjacent
Hope that helps!
The answer to your question is 24/25. Remember that Cos is taking the adjacent side and the hypotenuse of the triangle from the angle you want calculated.