nonagon
perimeter is when you have a shape and then you have your area and that is what is in the middle of the shape and perimeter is the edge of the shape.
Perimeter is the outside of a shape
for a 4 sided shape... w+w+L+L=perimeter perimeter is the outside of a shape. add all of the sides to get the perimeter.
Perimeter is the outside. The area is the inside of a shape.
A shape with 4 sides is a quadrilateral
the perimeter or the circumference
The perimeter of a shape is the distance around the outside. For a shape with straight sides, the perimeter is the sum of the length of the sides. The perimeter of a circle is called the circumference, and is calculated by multiplying the diameter by pi.
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The formula for the perimeter of a shape depends on the shape. It is the sum of the lengths of all the sides that enclose the shape.
If you want to enclose a certain area, the shape that does it with the shortest perimeter is a circle.
Any 2-dimensional shape can have a perimeter of 14 cm.
in math terms, the perimeter is the measure around the shape.