# maths

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#1
Can anyone help with this question?
Points A(0,2)and B(4,-2) lie on the circumference of a given circle.
Points C(-3,-3)and D (7,2)lie on the outside of the circle but the centre of the circle lies on CD. Find the education of the circle.
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4 weeks ago
#2
(Original post by louise18152)
Can anyone help with this question?
Points A(0,2)and B(4,-2) lie on the circumference of a given circle.
Points C(-3,-3)and D (7,2)lie on the outside of the circle but the centre of the circle lies on CD. Find the education of the circle.
Have you sketched it?
You know the distance r^2 from the centre is the same for each point. This gives a linear equation.
You also know it lies on the line between C and D.
Can you form those two equations?
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