All the options are incorrect, if you're talking about circle! which is most common
C = 2πr..... It is the relation for Circle's if you're considering something else, then, please mention!
Answer:
139.48
Step-by-step explanation:
cos(55)=80/x
80/cos(55)=x
Answer:
Step-by-step explanation:
I think its 900 i’m not sure
Answer:
32+160
Step-by-step explanation: