Other expression · CEFR C1
chord of contact
other_expression
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。
- 1.
In geometry, the chord of contact is the line segment connecting the two points where tangents drawn from an external point touch a conic.
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 use
For a circle, the chord of contact from a point outside the circle is perpendicular to the line joining that point to the center.
Dictionary facts from AI_SUPPLEMENT.