Inscribed rectangle

What is the perimeter of a rectangle that is inscribed in a circle whose diameter is 5 dm long?
Answer: 14 dm

Result

p =  12.761 dm

Solution:

Solution in text p =

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Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Showing 3 comments:
#
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.

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