Question 1104633
A rectangle measures 15.25"X 17" . How large of a circle will fit through it. 
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There's no "through" for a rectangle.  It's a plane figure.
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What will fit in it:
A 1" diameter circle will fit in it.
And a 2" diameter circle, also.
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If you mean the largest, you should say that.
The largest is 15.25"