To find the perimeter of a polygon (a figure with 3 or more enclosed, straight sides) simply add all of the outside lengths.
For Example: A square is 2 by 7 in.
Then the perimeter would be 18 inches.
To find perimeter you would add all of the sides of your object together to get the final result.
You use the definition of "perimeter". In other words, you add up the lengths of the three sides.
use your ruler to measure the sides
area = length x width perimeter = add up all the sides They use a trundle wheel to measure the sides
A perimeter is the sum of the lengths of all of the sides to a shape. Therefore, there is no actual number of sides a perimeter can have. A shape has sides. Its perimeter is just a number. If rectangle, then 4 sides. If pentagon, then 5 sides. If hexagon, then 6 sides. If triangle, then 3 sides. If octagon, then 8 sides.
Perimeter is used when you want to find the length of the sides of an object. A practicle use for perimeter would be knowing how much fencing you need to enclose a certain amount of space, but the length of the fencing would be the perimeter.
Add the lengths of the 3 sides to get the perimeter.
Perimeter is 5.
Perimeter = 6*6 = 36 cm
Add all sides together to get the perimeter.
The sum of the lengths of the sides of a polygon is called the perimeter.
add the sides toghther and then you'll have your perimeter of your triangle