Answer:
Step-by-step explanation:
so the area of a circle is A=[tex]\pi r^{2}[/tex]
111.6=3.14*[tex]r^{2}[/tex] divide by 3.14 on both sides. that makes 36=[tex]r^{2}[/tex] take the square root of both sides. r=6.
now we find the diameter. 2\pi r=2*3.14*6=3.14*12 which is approximately 38.68
