Yes by working out individual sections and then adding them altogether.
Divide the irregular figure into manageable pieces and work out their individual areas, sum the areas to that of the original figure. Measure the perimeter.
when its a irregular shape you divide it up
The perimeter of a square of known area is 4 x sqrt area, in this case 4 x 10 = 40 cm.
You approximate your irregular figure lots of small figures of known shapes. For example, you can divide it into lots of thin vertical (or horizontal) stripes, each of which is approximately a rectangle.
this is stupidinuss
You get the area by using formulas. There is usually a specific formula to find the area of each shape. Some irregular shaps may not have a formula.
Just area. Since there is no available term for the sum of the areas of all surfaces of a figure, we call that area of the "irregular" figure.
The area of a square that has a perimeter of 32m is: 64 m2
The best way would be to break the irregular shape down into several familiar shapes. If you can break down a complex figure into a rectangle and two triangles, for instance, you can use the known formulas for the area of those shapes to determine the total area when all added together.
28 cm
4 by 4 units
You approximate the irregular shape with many small regular figure, for example, long and thin rectangles.