nine-point circle en · NOUN
Etymology
So called because the circle passes through nine points of interest: the feet of the three altitudes, the centers of the three sides, and the midpoints of the segments which join the triangle's vertices with its orthocenter.
Meanings
- That circle which passes through the feet of the altitudes of a given triangle.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| nine-point circles | Number=Plur | lexicographic | |
| nine points circle | alternative | lexicographic |