to find the perimiter you just add up all the sides....Perimiter is the same for every figure.
put tape around the perimiter of it.
Add together the 4 sides
Surface Area = 1/2 x {times} the perimiter x {times}it by the the side length
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.
2 * pi * r
Run a piece of string round the edge and then measure it
C = (pi)/d or c = 2(pi)r.
simply to find area,distance, and perimiter
The perimeter is 31.11 units.
Add the lengths of any two adjacent sides, and double the sum.
it is the area of a solid object times by the square root of the perimiter