Answer: C
Step-by-step explanation:
Since the radius of a circular playground with 1600 square feet is 22.568, doubling the radius will get you 45.136. So, we can input each choice into the formula for the radius of a circle:
r=[tex]\sqrt{\frac{A}{\pi }[/tex]
Through process of elimination, we can see that only a circle with an area of [tex]6400ft^{2}[/tex] will give us the radius of 45.136.
Sorry for not being as explicit I was rushing a bit. Hope this helps though uwu!
