1. a 2.b 3.c 4.U!
Its main application is in finding the volumes of 3D shapes
A shape is an object with a specific number of sides. Some examples of shapes include circles, squares, triangles, pentagons, and hexagons.
the six main crystals are: cubic hexagonal orthcrhombic(?) monoclinic, tetragonal trilinic
3d+8=2d-7 3d+8-8=2d-7-8 (substract 8 on both side) 3d=2d-15 3d-2d=2d-2d-15 (substract 2d on both side) d=-15
There are infinitely many 3d shapes and many of them do not have specific names.
Cubes, pyramids, cones, and spheres are all 3D shapes.
It is impossible to name and draw ALL 3D shapes - there are infinitely many possibilities.
Since there are infinitely many possible shapes, it is impossible to list all shapes here.
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It is not possible to list all 3D shapes since there are an infinite number of them Moreover, their names are not sufficiently systematic to provide an alternative way of enumeration.
Just a few:CylinderCubeSphereCuboidConeTriangular pyramidSquare pyramidTriangular prismHexagonal prism
3D shapes have edges, sides, and intersecting points
Too many. Like spheres, cones, pyramids, prisms.