Answer:
C) 
Step-by-step explanation:
The formula for area is
A=pi * radius ^2
If the diameter is 40, the radius is 20
Therefore

No next time ask nicely instead of “and answer the question that follow”
Answer:
W= -2
Step-by-step explanation:
Answer : A and C have the same value
I hope that's help !
Answer:
0.25
Step-by-step explanation: