正方形(せいほうけい)

せいほうけい
noun
square
1. square (shape)
A quadrilateral with four equal sides and four right angles.
正方形(せいほうけい)の面積(めんせき)は一辺(いっぺん)の二乗(にじょう)だ。
The area of a square is the side length squared.
この部屋(へや)は正方形(せいほうけい)に近(ちか)い形(かたち)だ。
This room is close to a square shape.
折(お)り紙(がみ)を正方形(せいほうけい)に切(き)る。
Cut the origami paper into a square.

正方形(せいほうけい) refers to a square, a special type of rectangle where all sides are equal.

PROPERTIES:

  • Four equal sides
  • Four right angles (90°)
  • Diagonals are equal and bisect each other at right angles

RELATED TERMS:

  • 長方形(ちょうほうけい): rectangle
  • 四角形(しかくけい): quadrilateral
  • 菱形(ひしがた): rhombus
core
Added 2026.1.16 16:36 · Revised 2026.1.19 21:17
05000/05438_seihoukei