四つ角

N2 四角い shikakui square N3 四角 shikaku square, quadrilateral N2 角度 kakudo angle N2 三角 sankaku triangle, triangular N2 四捨五入 shishagonyuu rounding up (fractions) N2 折角 sekkaku with trouble, at great pains, long-awaited N2 直角 chokkaku right angle N2 方角 hougaku direction, way N2 街角 machikado street corner