Because we live in a 3-D world. Everything we see and come into contact with is a 3-D figure. These 3-D figures have three dimensions: length, width, and height.
The special features of 3D shapes are they all are 3D which means they are fat but 2D shapes are flat they can not stand up.
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3D shapes have three dimensions, namely length, breadth and height.
Polygons are 2d shapes whereas polyhedrons are 3d shapes
No because 2d shapes are plane such as polygons but example of 3d shapes are: pyramid, cone, cuboid, cylinder, sphere ... etc
In daily life, 3D snowflakes can be used for decorations during winter holidays, such as Christmas and New Year's. They can also be used in art projects, educational activities for teaching about symmetry and geometry, and as creative designs for clothing and accessories.
3D shapes have edges, sides, and intersecting points
The special features of 3D shapes are they all are 3D which means they are fat but 2D shapes are flat they can not stand up.
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3d shapes with six faces are called hexahedra.
Cubes, pyramids, cones, and spheres are all 3D shapes.
3D shapes have three dimensions, namely length, breadth and height.
Polygons are 2d shapes whereas polyhedrons are 3d shapes
when you think about 3d shapes
Give vidoes to understand the 2d and 3d shapes clearly
No because 2d shapes are plane such as polygons but example of 3d shapes are: pyramid, cone, cuboid, cylinder, sphere ... etc
There are infinitely many 3d shapes and many of them do not have specific names.