Posted by **Stacey Graham** on Wednesday, July 7, 2010 at 7:30am.

how to solve for radius of horizontal curve with coordinates(NE) for points A,B, C on the curve

Point A : N1405.4018

E1256.7569

Point B : N1283.3703

E1294.7027

Point C : N1225.9373

E1286.6137

- math -
**drwls**, Wednesday, July 7, 2010 at 7:33am
If a line is horizontal, it is not a curve and the radius is infinity. What are the units of your numbers?

Your question does not make sense to me.

- math -
**Stacey Graham**, Wednesday, July 7, 2010 at 7:43am
its an arc definition curve with pts A, B, C and have to find the radius of the curve

- math -
**drwls**, Wednesday, July 7, 2010 at 9:02am
The center of the circle containing those three points is located where the perpendicular bisectors of AB and BC intersect. Get the equations of the bisectors and solve for their intersection point.

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