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It depends what shape you are trying to find. If it is a circle, use the following:
C = Dpi
Circumference = Diameter x Pi
Take the diameter of the circle, or twice the radius, and multiply it by pi, which is ~3.14
If it is any other shape, just add up the sides if they are given.
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What formula do you use to find the perimiter of a circle?
2 * pi * r
What is the formula for finding the perimiter of a parallelogram?
Add the four 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 is the purpose of heron's formula?
Heron's formula, is basically a way to find the are of any triangle, as long as it has the sides of a, b, and c. For example, if a scalene has sides of 12, 15, and 7, you can use heron's formula to find the area. The formula is the square root of s(s-a)(s-b)(s-c). S is basicall half of the perimiter, and a, b, and c are the lengths of the sides.
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 formula do you use to find the perimiter of a circle?
2 * pi * r
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.
Formula for perimiter?
multiply all of the sides than that is your answer
What is the formula for finding the perimiter of a parallelogram?
Add the four sides.
What is the formula of finding perimeter of a rectangle?
The formula for finding the perimiter of a rectangle is add up all of its sides
How do you find the perimiter of a surface?
Add up the sides.
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 is the purpose of heron's formula?
Heron's formula, is basically a way to find the are of any triangle, as long as it has the sides of a, b, and c. For example, if a scalene has sides of 12, 15, and 7, you can use heron's formula to find the area. The formula is the square root of s(s-a)(s-b)(s-c). S is basicall half of the perimiter, and a, b, and c are the lengths of the sides.
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
How do you find perimiter of a circle?
C = (pi)/d or c = 2(pi)r.
How do you find the perimiter of a shape?
Run a piece of string round the edge and then measure it
