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词汇 nine-point circle
释义

Definition of nine-point circle in English:

nine-point circle

(also nine-points circle)
noun
Mathematics
  • A circle passing through the mid-points of the three sides of a triangle, the feet of its three altitudes, and the mid-points of the segments of the altitudes from the vertices to their point of intersection.

Origin

Mid 19th century; earliest use found in William T. Brande (1788–1866), chemist.

Definition of nine-point circle in US English:

nine-point circle

(also nine-points circle)
noun
Mathematics
  • A circle passing through the mid-points of the three sides of a triangle, the feet of its three altitudes, and the mid-points of the segments of the altitudes from the vertices to their point of intersection.

Origin

Mid 19th century; earliest use found in William T. Brande (1788–1866), chemist.

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