几何学术语,指从外部一点引圆锥曲线的两条切线所得到的切点之间的连线。
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几何学术语,指从外部一点引圆锥曲线的两条切线所得到的切点之间的连线。
In geometry, the chord of contact is the line segment connecting the two points where tangents drawn from an external point touch a conic.
For a circle, the chord of contact from a point outside the circle is perpendicular to the line joining that point to the center.
对于圆,从圆外一点引出的切点弦与该点和圆心的连线垂直。
几何学术语,指从外部一点引圆锥曲线的两条切线所得到的切点之间的连线。
In geometry, the chord of contact is the line segment connecting the two points where tangents drawn from an external point touch a conic.
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Dictionary facts from AI_SUPPLEMENT.