In the triangle below, what is the cosine of 45°? Someone please help ASAP

Answer:
A. √ 2
Step-by-step explanation:
cos(x) = adj/hyp
cos(45) = √ 2/1
cos(45) = √ 2
Answer:
B. 1/√2
Step-by-step explanation:
Soh Cah Toa
cos is adjacent over hypotenuse so from either 45° degree angle it is 1/√2