SOLUTION: Each side of an inscribed square measures 18cm. Find the length of one of the circle's minor arcs. Round your answer to the nearest hundredth.

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Question 1179287: Each side of an inscribed square measures 18cm. Find the length of one of the circle's minor arcs. Round your answer to the nearest hundredth.
Answer by Boreal(15235) About Me  (Show Source):
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Draw this
the diagonal of the square is 18 sqrt(2) cm. That is the diameter of the circle.
The circumference of the circle is therefore 18 sqrt(2)*π cm.
That is divided up into 4 equal arcs, so each arc is 4.5 sqrt(2)*π cm or 19.99 cm