Perimeter
Perimeter is the distance around the outside of a 2D shape.
The perimeter of a two-dimensional shape is the total distance around the edge of the shape. The formula for finding the perimeter of various shapes differs. For example, the perimeter of a rectangle is calculated by adding up the length of all four sides, while the perimeter of a circle is calculated by multiplying the diameter of the circle (distance across the center) by pi (3.14). Other common shapes include triangles, squares, and regular polygons.
An important point to note about the perimeter is that it is always measured in units of length, such as inches, feet, meters or kilometers, depending on the region.
The perimeter is an essential concept in geometry, and it is used in various real-life applications such as calculating the amount of fencing required to enclose a yard or the amount of trim needed around the edges of a room.
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