To find the area, first divide the shape into regular, simple shapes. Then use formulas to find the area of the smaller, regular shapes. Lastly, add up all the smaller areas to find the area of the original shape.
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To find the area of any parallelogram, whether it be irregular or not, just multiply the base by the height. * Ap = bh
Area. Very few 2-dimensional figures can be measured by length and width - rectangles (and stretching the terminology) triangles and parallelograms. Certainly not circles, stars, irregular polygons, other irregular shapes.
a irregular figure is not a particular shape it may have two or more figures in to make a irregular figure
Different figures have different rules to determine the area of it.
If the figure is irregular, you can't calculate its area (for example) with some simple formula. You need to use integration - which basically means to divide the figure into many narrow strips, which you assume to be rectangles.