N2 — outside your level filter
正三角形
seisankakukeian equilateral triangleN2
Example sentences2
正三角形は三つの辺の長さがすべて等しい。
seisankakukei wa mittsu no hen no nagasa ga subete hitoshii.
In an equilateral triangle, all three sides are equal in length. neutral
この図形、正三角形じゃなくない?
kono zukei, seisankakukei ja nakunai?
Isn't this shape not actually an equilateral triangle? casual