SOLUTION: A rectangle is 10cm by 12cm. What is the radius of the circle that will circumscribe it?

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Question 832688: A rectangle is 10cm by 12cm. What is the radius of the circle that will circumscribe it?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The diagonal of the rectangle fits on a diameter of the circle. This diagonal is the hypotenuse of the two or either triangle parts which make the rectangle.

diameter: sqrt%2810%5E2%2B12%5E2%29
Radius: %281%2F2%29sqrt%28100%2B144%29=%281%2F2%29sqrt%28244%29=highlight%28sqrt%2861%29%29