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Asked: 2026-05-25T22:03:09+00:00

In Silverlight, is there a way to determine the angle of a Line object?

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In Silverlight, is there a way to determine the angle of a Line object? If I have a Line with coordinates of 0,0 - 30,80, is there a way to determine the angle, in degrees, that the line is running?

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  1. Editorial Team

    You could try finding the arc tangent using the Math.Atan function. You just need to find the atan of the (delta of) y-value over the (delta of) x-value.

    The answer will be in radians and you will need to convert it to degrees (rads * (180f / Math.PI)).

    An example of this would be something like:

    double rads = Math.Atan((line.Y2 - line.Y1) / (line.X2 - line.X1));
double degrees = rads * (180f / Math.PI);

    (Note: I’ve never used Silverlight and I’m just basing this off the docs, so this might be completely wrong… you can also use Math.Atan2(delta y, delta x) too…)

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