It is its volume which is measured in cubic units
solid
A three-dimensional geometric figure is called a solid. Solids have length, width, and height, distinguishing them from two-dimensional shapes that only have length and width. Common examples of three-dimensional solids include cubes, spheres, cylinders, and pyramids.
a crystal
In the common use of the phrase "geometric solid", the answer is three. In advanced mathematics, dimensions greater than three are also studied. In many cases, the name of a plane (two-dimensional) figure has the ending "-gon" as in "hexagon", while the name of a solid figure (three dimensional) has the ending "-hedron" as in tetrahedron.
curve surface area
A Solid ... such as a sphere or a cube.
solid
A geometric solid. The answer is NOT polyhedron. A cone, for example, which is a figure made up of the most simple geometric shapes (a straight line) and a circle, is not a polyhedron.
A geometric figure is a figure of any shape and size, and can also be flat/plane ( meaning, two dimensional like triangle, equilateral., pentagon...) or solid (3 dimensional figure like cube, pyramid, sphere..).A geometric model is a geometric figure that represents real life object like butterfly, flower, earth, etc.So a geometric kite is a two dimensional geometric figure or model.
Such at figure - as described - could not be made as a solid geometric shape.
A tetrahedron.
A side of a solid figure is called a face.
a crystal
Crystal
A tetrahedron.
geometric solid
2 consecutive circles ============= As a solid geometric figure, a doughnut shape is called a torus.