Used in mathematical contexts to denote a square unit of measurement, such as square meters or square kilometers.
この部屋の面積は20平方メートルです。
The area of this room is 20 square meters.
Calculate the population density per square kilometer.
The square of 3 is 9.
This room is 20 square meters.
If you square this number, it becomes 16.
square centimeter
sum of squares