Answer:
The radius will change from 0.977 feet to 1.49 feet.
Step-by-step explanation:
The area of a circle with radius r is given by πr².
If the are of the circle is 3 square feet, then πr² = 3, ⇒ r²=[tex]\frac{3}{\pi }[/tex]
⇒ r² =0.9545, ⇒ r=0.977 feet.
If the area of the circle changes to 7 square feet, then its radius will change to r²=[tex]\frac{7}{\pi }[/tex] =2.228, ⇒ r =1.49 feet.
Therefore, the radius will change from 0.977 feet to 1.49 feet. (Answer)
