I believe they are called the "Legs." They are also referred to as the opposite and adjacent sides. :)
Answer:
46.07
Step-by-step explanation:
CAH (cosine=adjacent/hypotenuse)
cos (71)=15 (adjacent)/x (hypotenuse)
x=15/cos(71)
x=46.07
20^2-12^2=x^2
400-144=x^2
256=x^2
x=16
Answer: A
Step-by-step explanation:
