created sense approved 内切/內切 · nèiqiē · inscribe
内切 / 內切
nèiqiē
inscribe
to be inscribed, as a circle within a polygon touching all sides
三角形的内切圆圆心称为内心。
created sense approved 内切/內切 · nèiqiē · internally tangent
内切 / 內切
nèiqiē
internally tangent
to be tangent internally, as two circles sharing a single point of contact with one inside the other
当两圆内切时，它们的圆心距等于两圆半径之差。