Answer:
4[tex]\pi[/tex]
Step-by-step explanation:
Radius is always half of the diameter.
So, 4/2=2
Now that we know the radius, we find the are.
The equation for area is [tex]\pi r^2[/tex]. When you insert everything, you get....
[tex]\pi[/tex][tex]*[/tex][tex]2^{2}[/tex]
When you put it all together, we get... 4[tex]\pi[/tex]
Hope this helped :)
