perimeter

US /pəˈrɪm.ə.t̬ɚ/
UK /pəˈrɪm.ə.t̬ɚ/
"perimeter" picture
1.

周长

the continuous line forming the boundary of a closed geometric figure

:
The perimeter of the square is 20 cm.
正方形的周长是20厘米。
We need to calculate the perimeter of the garden to buy enough fencing.
我们需要计算花园的周长,以便购买足够的围栏。
2.

周边, 边界

the outermost part of an area or object

:
Security guards patrolled the perimeter of the building.
保安人员巡逻了建筑物的周边
The fence marks the perimeter of our property.
围栏标志着我们房产的边界