You need to find circumference, so you would multiply the diameter by pi. So your answer is 212pi feet or 666.02 feet
Since this is in the Mathematics subject my best answer would be Rational.
What part do you not understand?
Area of square = atleast 36 = length *width, where l = w (since it's a square)
If A=36, l = w = 6
If A = 37, l = w = 6.08
if A =38, l = w = 6.16
So the solution set is s => 6 (s is bigger than or equal to 6)
