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A circle is passing through two end points A[6,4] and B[10,10]. Find radius...

Q.  
A circle is passing through two end points A[6,4] and B[10,10]. Find radius of circle ?


Answer & Explanation

Centre point is =((x1+x2)/2, (y1+y2)/2 = (8,7).
There distance from any point (A or B) is = (2, 3).
Radius (r) = square-root(2^2 + 3^2)
= 3.6

Thus correct option is: B.

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