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A Rugby ball
No shape is mathematical really unless it has been created by a mathematical formula, but is certainly a geometric shape. But anything which is a 2D or 3D shape is geometric. My improvement: A catenary curve from a mathematical equation such as cosh x, is a mathematical and natural shape. Maby each other arch can be approximated by a mathematical formula.
The term prism describes the shape of a wedge. It looks like a triangle on the two ends.
There is no specific name. There are spheres, ellipsoids, paraboloids, etc. Then there are 3-d cycloids,
Any shape is mathematical.
the mathematical term meaning the line between 2 corners of a 2D or 3D shape. example: a hexagon has nine diagonals
I would call it an elliptical spheroid, I think. An ellipse would be the closest 2D term though.
A Rugby ball
No shape is mathematical really unless it has been created by a mathematical formula, but is certainly a geometric shape. But anything which is a 2D or 3D shape is geometric. My improvement: A catenary curve from a mathematical equation such as cosh x, is a mathematical and natural shape. Maby each other arch can be approximated by a mathematical formula.
The geometic term for the shape of a 50 Pence coin is a "Heptagon".
2 consecutive circles ============= As a solid geometric figure, a doughnut shape is called a torus.
Yes but the correct term is octohedron
The term prism describes the shape of a wedge. It looks like a triangle on the two ends.
An 18 sided shape is called a octadecagon. This refers to both 2 dimensional and 3 dimensional shapes in a mathematical sense.
Geometrical symmetry is a mathematical term for a shape that, if torn in half, can be mirrored and restored to the shape again.
There is no specific name. There are spheres, ellipsoids, paraboloids, etc. Then there are 3-d cycloids,
Any shape is mathematical.