There are infinitely many possible lengths for its sides. Select any number A, between 0 and 3 and let B = 6 - A
Then a parallelogram with opposite sides of A cm and B cm will have a perimeter of 12 cm.
Each of these parallelograms can come in infinite many shapes since the angle between the sides can vary infinitely.
74 cm
Its perimeter is 48 centimeters (4X12=48).
The answer is 12 cm.
12 cm
12 cm
If the short side is 6 then the opposite side must be the same, therefore 12 centimeters of the perimeter is the short sides leaving 14 centimeters for the long sides which would make them 7 centimeters each.
The perimeter of a square with a diagonal of 12 centimeters is: 33.9 centimeters.In future, to find out the perimeter of a square when you only know it's diagonal, use Pythagoras or times the diagonal by 2.828427125.This number is irrational, and is like a pi for the diagonals of squares.I call it Tau.It is the relationship between the diagonal of all squares and there perimeter.
4 root 9 ie 12 cm
The area is 9 cm212 / 4 = 33 * 3 = 9
Assuming the shape is a regular dodecagon, with 12 angles and lengths the same, a dodecagon with sides of 9.25 centimetres has a perimeter of 9.25 x 12 = 110 centimetres.
i its isosceles
The sidelength of a square is the square root of its area, and its perimeter is four time this. 4 x sqrt(9 cm2) = 12 centimetres.