a cube
no
a triangular pyramid.
No. Congruent means the same shape and the same size. Two perfect circles would be the same shape but they might not be the same size.
This shape is called an icosikaitera. All of the sides of the icosikaitera are all of the same equal length.
Democritus theorized that all matter is made up of tiny, indivisible particles called atoms. He believed that these atoms were all the same in substance but differed in size, shape, and arrangement, giving rise to the diversity of matter observed in the world.
Yes. All koalas are essentially the same shape.
Are all orbits the same shape????
the shape is a regular shape if it has all the same angles and side lengths.
No, they are not.
no
A solid has a definite shape and volume and the particles in a solid stay in the same position relative to each other. A liquid has a definite volume, but not a definite shape, and the particles in a liquid slide past and over each other. A gas has neither a definite shape nor volume but fills the entire container it is in. The particles in a gas move all around and bounce off each other and the walls of the container.
a cube
no
no
No they are not
They are all made of matter; just in different states.