The perimeter is the total distance around the edge of a two-dimensional shape. It's like the length of a fence surrounding a garden.
Since all four sides of a square are equal, the perimeter is:
Perimeter=4×side length
To find the perimeter of a triangle, add the lengths of all three sides together:
Perimeter=side 1+side 2+side 3
The area is the amount of space inside a two-dimensional shape. It's like the space a rug covers on the floor.
Yes, two shapes can have the same perimeter but different areas. For example, a long, narrow rectangle and a more square-shaped rectangle could have the same perimeter but different areas.