Answer:
Wait what
Step-by-step explanation: is this a question or??
Answer:
k just doing this for points
Step-by-step explanation:
Answer:
Step-by-step explanation:

Answer:
B
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos45° =
, then
cos45° =
=
=
( cross- multiply )
c = 3