obtuse cone
Geometry
noun
A cone whose section by a plane through the axis has an obtuse angle at the vertex.
Origin
Late 17th century; earliest use found in Nehemiah Grew (a1641–1712), botanist and physician.
| 单词 | obtuse cone |
| 释义 | obtuse coneGeometry noun A cone whose section by a plane through the axis has an obtuse angle at the vertex. Origin |
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