there are many names for this explanation and a particular name is..............
Minerals that have sharp edges when broken have a high cleavage. Most minerals will have a sharp edge when broken, but talc will not.
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crystals
There are no 3-d shapes that have 5 vertices and 5 edges.
Cuboid has : 8 corners (vertices) 12 edges
cleavage, if a natural property of the mineral (e.g. mica); or a fault, such as in a gemstone.
Water enters through the joints in a rock. It weathers the corner and edges most rapidly. The rock has a greater surface area than the faces have. As a result the corners and edges become rounded almost as a spherical shape.
1. A pentagon is a polygon with five sides and five angles.2. Pentagon A fivesided building near Washington DC, containing the US Department of Defense and the offices of theUS Armed Forces.
they are shiny, and have regular shapes and sharp edges
They are called sides or edges.
Some shapes can have 19 edges but not most shapes.
Hard-Edge
Some shapes that have 4 edges and 4 vertices are squares, rectangles, and parallelograms. A shape with 4 edges and 4 vertices is called a quadrilaterals.
Any shape with straight edges can have perpendicular edges.
It is called the perimeter. How you calculate it depends upon the type of shape it is.
There are infinitely many shapes that do.
Congruent shapes.
it means the shapes that has faces,vertices and edges
This all depends on the shape. Different shapes have different face, edges, vertices.
2d shapes do not have edges or vertices