Area=pi times radius^2 so
if area=4pi=pi times r^2
4 times pi=r^2 times pi
divide both sdies by pi
4=r^2
square root
2=radius since legnth cannot be negative
radius=1/2 diamters
2 radius=diameter
2(2)=diameter=4
diameter=4
Answer:the answer will be 6
Step-by-step explanation:
Answer:
12 sq mi
Step-by-step explanation:
base times height divided by 2
Answer:
5
Step-by-step explanation:
the 5
