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geometry[radius] - compute the radius of a given circle
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Calling Sequence
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radius(c)
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Description
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The routine returns the radius of the given circle c.
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The command with(geometry,radius) allows the use of the abbreviated form of this command.
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Examples
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![circle(ABC, [point(A, 0, 0), point(B, 2, 0), point(C, 1, 3)])](/support/helpjp/helpview.aspx?si=5888/file04128/math51.png)
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![circle(c, x^2+y^2 = 9, [x, y])](/support/helpjp/helpview.aspx?si=5888/file04128/math55.png)
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