In two dimensionscircles look like spheres. Any uniform polyhedron with a large number of sides looks something like a sphere.A sphere is a special case of an ellipsoid (where the three axes are equal), so ellipsoids can look like spheres. Another special case of ellipsoids is called a spheroid (where two axes are the same).
There are different formulae for spheres, ellipsoids, cones and pyramids, paralellepipeds as well as some other shapes. For other shapes, including irregular shapes, the fluid displacement method may be the only option.
Actually, eyes are ellipsoids because they have three dimensions.
· ellipse · ellipses · ellipsis · ellipsoid · ellipsoidal · ellipsoids
Spheres, ellipsoids, paraboloids, hyperboloids, cardoids, smooth blobs.
A point, a circle and a sphere. Other candidates are ellipsoids, triangle and tetrahedra.
It depends on the shape. there are different formulae for spheres, ellipsoids, cubes, cuboids, and other shapes.
Yes, any polyhedron with sides has vertices. The only three dimension objects which are not a polyhedra are spheres, spheroids, and ellipsoids.
There is no specific name. There are spheres, ellipsoids, paraboloids, etc. Then there are 3-d cycloids,
There are many possibilities: A cone A section of a sphere, and some ellipsoids, parabolids or hyperboloids
In two dimensionscircles look like spheres. Any uniform polyhedron with a large number of sides looks something like a sphere.A sphere is a special case of an ellipsoid (where the three axes are equal), so ellipsoids can look like spheres. Another special case of ellipsoids is called a spheroid (where two axes are the same).
In 2-D: circles, ellipses, smooth loops or in 3-D spheres, ellipsoids, smoothed blobs have none. A cone has only one vertex.
Wikipedia at least doesn't mention a Dhurv star; you may want to check the spelling. Some stars are believed to be ellipsoids rather than spheres, simply because they rotate very fast.
The area of an ellipsoid involves incomplete elliptical integrals and, if those make sense to you, you can follow up ellipsoids on Wolfram MathWorld, for example. See //mathworld.wolfram.com/Ellipsoid.html. A simpler but approximate answer, for an ellipsoid with semi-principal axes of lengths a, b and c, is as follows: the surface area, S = approx 4pi*{[(ab)^p + (bc)^p + (ca)^p)]/3}^(1/p) p = 1.6 gives a good approximation for "normal" ellipsoids. When the smallest axis is nearly of 0 length - that is, the ellipsoid is nearly flat - the area is approx 2pi*ab.