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Perimeter
01
the total length of the external boundary of something
Examples
The geometry student calculated the perimeter of the rectangular garden to determine how much fencing would be needed.
In her math homework, she had to calculate the perimeter of various shapes, including triangles, squares, and pentagons.
02
the margins at the outer edge of an area
Examples
Security personnel were stationed at the perimeter of the concert venue to control the crowd and prevent any disturbances.
The wildfire fighters focused on containing the blaze within the perimeter to prevent it from spreading to residential areas.
