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Why do coins have smooth and rough edges?
Coins have smooth edges to make them easy to stack and handle. Rough edges, also known as reeded edges, are added to coins as a security feature to prevent counterfeiting by making it difficult to file down or alter the edges of the coin.
Why knives scissors and nails have a sharp edges?
Knives and scissors have edges to cut things, but nails do not have sharp edges, they have points to penetrate hard surfaces.
Why would you use garnet to make sandpaper?
Sandpaper is made with corundum because it is extremely hard (9 on the Moh's Scale of Hardness) compared to just about anything else, except diamond (which top the scale at 10). This "hardness" is basically the factor which determines what happens when scraped against another material. If the corundum in the sandpaper is harder than whatever you are rubbing it against, then it will scratch the surface. If the sandpaper is used on something harder than corundum, the sandpaper will not be able to leave abrasions. Corundum is used because there are very few materials which it will fail to scratch.
What are crater edges called?
Crater edges are called rims. They are the raised edges that surround the depression created by an impact from a meteorite or other object striking the surface of a planet or moon.
What rock has sharp edges?
Rocks that have sharp edges are often formed from the cooling and solidification of magma. These cooling processes can occur quickly, resulting in the formation of sharp edges and angular shapes. Some examples of rocks that may have sharp edges include basalt, obsidian, and flint.
What has the author Eldon Garnet written?
Eldon Garnet has written: 'Lost Between the Edges (Semiotext(e) / Native Agents)' 'The fallen body =' -- subject(s): Exhibitions, Artistic Photography 'Today, tonight, tomorrow' -- subject(s): Video art, Artists' books 'Angel' 'Impulse Archaeology' 'Spiraling' 'The last adventure'
What solid has 2 edges?
k but how is it cylinder,my brother is in 7th class and im in 9th so i forgot the chapter,so can u explain me?
Explain why there are no forward non tree edges with respect to a BFS tree constructed for a directed graph?
bag
Are all faces of a tetrahedron congruent explain?
A tetrahedron is a triangular based pyramid that has 4 equilateral triangle faces, 6 edges and 4 vertices.
How many edges does a rhombic dodecahedron have?
24 edges.24 edges.24 edges.24 edges.
How many edges does a pentagonal prism have?
A pentagonal prism has 15 edges. 10 of these are base edges and then 5 lateral edges. Formula : A prism with a n-sided polygons at each end will have 3n edges.
What shape has no edges?
a sphere has no edges. a circle has no edges.
Which shapes with straight edges has no perpendicular edges?
Any shape with straight edges can have perpendicular edges.
Can you explain why the cube is not a quadrilateral?
A cube is a 3 dimensional shape with 6 faces, 12 edges and 8 vertices whereas a quadrilateral is a 2 dimensional shape with 4 sides.
Can one or more faces of a cube be a rectangle explain?
Cubes are 3 dimensional figures and are equal on all edges. Therefore if one face is not a rectangle, then no face is a rectangle. Basically no.
How many edges does a octagonal pyramid has?
16 edges- the edges of the base, and the edges leading to the point of the pyramid.
How can the number of edges of the base of a prism be used to calculate the number of edges?
The number of edges of the base of a prism can be used to calculate the total number of edges by first determining the number of edges on one base. For example, a rectangular prism has 4 edges on its base. Then, multiply this number by 2 to account for the top and bottom bases. Finally, add the number of edges around the sides of the prism, which is the same as the number of edges on the base. So, in total, the number of edges of a prism can be calculated as 2 times the number of edges on the base plus the number of edges around the sides.
