Acute-angled triangle
01
鋭角三角形, 鋭角の三角形
a type of triangle in which all three angles are less than 90 degrees
例
The quilt had a pattern with acute-angled triangles.
キルトには鋭角三角形の模様がありました。
During math class, we measured angles in acute-angled triangles.
数学の授業中、私たちは鋭角三角形の角度を測定しました。
