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A 3 by 4 rectangle is inscribed in circle. What is the circumference of the circle?
A. 1π
B. 2π
C. 5π
D. 7π
E. 10π
The diagonal of a rectangle is the diameter of a circle. The diagonal is the hypotenuse of a 3,4,5 triangle, and is therefore, 5.
Circumference = π.diameter = 5π

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 OmegaMoo43684 PointsWhat is to say that you already don't know???

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Taken: 72 times
Added: 10/27/2008
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Taggged: Math, SAT

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