What is the formula for the perimeter?

The formula is:
Perimeter = (the distance all the way around the outside of the figure) .
How to calculate the distance all the way around the outside of the figure is different for every shape.
A few of them are:
Square . . . . . 4 x the length of one side
Rectangle . . . . . (2) x (length + width)
Circle . . . . . (2 pi) x (radius)
etc.

Answered by AL2006 | 2024-06-10

T h e p er im e t er o f an y p o l y g o n i s t h e s u m o f t h e l e n g t h s o f a ll i t s s i d es ( a , b , c , d , ... ) t r ian g l e : P = a + b + c e q u i l a t er a l t r ian g l e : P = 3 a rec t an g l e : P = 2 a + 2 b s q u a re : P = 4 a d iam o n d : P = 4 a t r a p ez : P = a + b + c + d i sosce l es t r a p ezo i d : P = a + b + 2 c ( c − a r m l e n g t h ) an y p o l y g o n : P = a + b + c + d + ... − − − − − − − − − − − − − − − − T h e p er im e t er o f a c i rc l e : P = 2 π r ( r − r a d i u s or a c i rc l e )

Answered by kate200468 | 2024-06-10

The perimeter is the total distance around a shape and is calculated using specific formulas depending on the shape. For example, the perimeter of a square is 4 s , while for a rectangle it is 2 ( l + w ) . Knowing the formulas for different shapes will help you calculate the perimeter effectively.
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Answered by AL2006 | 2024-11-06