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Math/Geometry Guru anyone?
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Math/Geometry Guru anyone?


  • Subject: Math/Geometry Guru anyone?
  • From: Jon <email@hidden>
  • Date: Tue, 05 Dec 2000 21:52:16 -0500

> Hello,
>
> I a drawing pie charts in Ilustrator 9 and need an equation to find the
> intersecting point of a line extended from the center point the length of
> the radius.
>
> Diameter 72 pts
> Radius 36 pts
> Center point coordinate 0,0
> Angle of line extended 45
>
> Any ideas on the point coordinates of the intersection of the circle?

Sure (I don't know if the symbols I'm using will come across):

Sin(:) x Hypotenuse = side opposite (which in cartesian coordinates gives
you the "y")

Then pythagorean theorem to find the side adjacent (which is "X")

Sin(45) x 36 = 25.45584412

Since the angle is 45: both coordinates will be equal:

(25.45584412, 25.45584412)

Jon


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