Inscribed rectangle

What is the perimeter of a rectangle that is inscribed in a circle whose diameter is 5 dm long?

Result

p =  12.761 dm

Solution: Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...): Dr Math
not exact solution, because rectangle have two different size Nestor
The solution is ambiguous. Where does x = r/3 came from?

1 year ago  1 Like Dr Math
the solution is ok, bud problem is wrongly formulated.  x = r/3 is assumed to be something calculated. The solution is picked only one from infinity many solutions. Next similar math problems:

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