Thursday

October 2, 2014

October 2, 2014

Posted by **sarah** on Sunday, October 15, 2006 at 9:21am.

Two. The location of the center, and one point on the circle (ie, the length of radius), you have determined the circle. However, the circle thus determined can be an an infinite number of planes (not just in the plane of the paper you marked). So if you want the circle in a specific plane, then three points are required.

Generally 3 non-collinear points determine a unique circle.

If you're given 2 you could determine a center and radius, or you could determine the endpoints of a diameter, but I think the question is asking a general question.

Two points incidentally are collinear by definition, so the answer is 3.

yea its defenitly 3

**Answer this Question**

**Related Questions**

Math - Circle C has radius 4 inches. Circle D had radius 9 inches. These two ...

math - what is the number of noncollinear points that determine a cirlce ...

Math - The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle...

Math - I have a question my brother asked me but I need a math expert. You have ...

physics - A block of mass m = 4.30 kg is released from rest from point circle a ...

mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....

mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....

mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....

maths - Two tangents XY and XZ are drawn from a point X to a circle with center ...

math - a circle is tangent to the y-axis at y=3 and has one x-intercept at x=1 a...