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Run a piece of string round the edge and then measure it

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14y ago

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How do i calculate perimiter?

The perimeter of a shape such as a polygon is the sum of its sides.


How do you calculate the area and perimiter of a basic shape?

You multiply the length times the width of the shape. LxW=A


What does perimiter mean in maths?

Add all of the sides of the shape together and you have the perimeter.


What is the formula to find perimeter of a rectangle?

to find the perimiter you just add up all the sides....Perimiter is the same for every figure.


How do you find the perimiter of a surface?

Add up the sides.


What is the formula to find the perimiter?

It depends what shape you are trying to find. If it is a circle, use the following:C = DpiCircumference = Diameter x PiTake the diameter of the circle, or twice the radius, and multiply it by pi, which is ~3.14If it is any other shape, just add up the sides if they are given.


How do you find perimiter of a rectangle?

Add together the 4 sides


How do you find the area and perimiter of a triangle?

To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle. To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle.


What formula do you use to find the perimiter of a circle?

2 * pi * r


What formula do you use to find perimeter?

well, you really have to add up the sides. if you have a 7 by 34 rectangle, you add up like this; 7+7+34+34. it'll be the perimiter around the shape


What is the perimiter of a millon sq foot?

You cannot get perimeter from square foot unless you know the shape and at least one dimension


How do you find the area when i only have the perimiter length?

If the area is that of a circle or a regular polygon (triangle, square, reg pentagon etc) there are formulae that will enable you to do so. If it is any other shape - ellipse, irregular polygon, or worse still a random shape - then the area cannot be found.