document.write( "Question 845784: The points (-3,-1) and (9,4) are the endpoints of the diameter of a circle. Find the length of the radius of the circle. \r
\n" ); document.write( "\n" ); document.write( "I have used the distance formula and I get the answer of 13. However in the back of my textbook the answer is 6.5. I was wondering if I am doing something wrong, or if I am missing a step?
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Algebra.Com's Answer #509442 by Alan3354(69443)\"\" \"About 
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The distance between the points is the diameter.
\n" ); document.write( "The radius is 1/2 that.
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