Yes because they can be measured mathematically. But free form shapes can't for instance you can't measure a pare using i ruler. But you can measure a square with a ruler.
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You divide the shape into smaller shapes you can calculate, like rectangles and triangles. If the shape is irregular, you have to approximate, for example by dividing it into many narrow rectangles. This technique is called "integration".
There are a great many different shapes that are in Geometry. There are squares, circles, triangles, rhombus', and hexagons for example.
The perimeter for a certain area varies, depending on the figure. For example, a circle, different ellipses, a square, different rectangles, and different shapes of triangles, all have different perimeters or circumferences, for the same area.The perimeter for a certain area varies, depending on the figure. For example, a circle, different ellipses, a square, different rectangles, and different shapes of triangles, all have different perimeters or circumferences, for the same area.The perimeter for a certain area varies, depending on the figure. For example, a circle, different ellipses, a square, different rectangles, and different shapes of triangles, all have different perimeters or circumferences, for the same area.The perimeter for a certain area varies, depending on the figure. For example, a circle, different ellipses, a square, different rectangles, and different shapes of triangles, all have different perimeters or circumferences, for the same area.
In mathematics, a face is a flat surface that is a constituent of a three-dimensional geometric object, such as a polyhedron or a solid. Faces are typically polygons, such as triangles, rectangles, or pentagons, and they help define the shape and structure of the object. For example, a cube has six faces, each being a square.
I am not aware of any "geometric figure 8" - before finding the area of such a figure, you have to determine clearly how exactly it is defined. For example, you can draw two exact circles, or two ellipses - but that's not always exactly how it is drawn.