SOLUTION: What is the approximate largest circumference of a circular pond that could fit within a square walkway of sides 30 meters? 47 m 60 m 94 m 120 m

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Question 1077269: What is the approximate largest circumference of a circular pond that could fit within a square walkway of sides 30 meters?
47 m
60 m
94 m
120 m

Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
r will be close to 1/2 the length of each side (so the resulting circle just reaches the walkway). Set +r=15m+ to do the calculation, but keep in mind r must be smaller than 15m in order for the pond not to actually reach the walkway.
+15m%2A2%28pi%29+=+94.25m+
+highlight%2894m%29+