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July 2, 2016
Posted by **C** on Thursday, February 28, 2013 at 5:34pm.

- Geometry -
**MathMate**, Thursday, February 28, 2013 at 6:02pmIf centre has (6,8) and one end of the diameter has (4,2), add Δx and Δy to the centre to get the other end of the diameter, namely,

(Δx,Δy) = (6-4, 8-2) = (2,6)

So the other end of the diameter would be (6+2,8+6)=(8,14).

Check: the mid-point of the diameter should be the centre:

((4+8)/2,(2+14)/2)=(6,8) = centre of circle. - Geometry -
**david**, Sunday, October 6, 2013 at 7:28pm(1,3)

- Geometry -
**david**, Sunday, October 6, 2013 at 7:28pmAnswer= (1,3)