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Sphere

Sphere

A sphere is the set of points which are all within the same distance from a given point in space.

رياضى

کلیدواژه‌ها

sphere, radius, diameter, great circle, plane section, solid of revolution, geometry, mathematics

موارد مربوط

حجم کره (نمایش)

کره با ظرفیت تقریبی نامشخص.

Surface area of spheres (demonstration)

The surface of a sphere consists of the set of points which are all at the same distance from a given point in space.

Volume of spheres (Cavalieri´s principle)

Calculating the volume of a sphere is possible using an appropriate cylinder and cone.

محیط، مساحت، سطح و حجم

این انیمیشن فرمول های محاسبه محیط و مساحت شکل ها و همچنین مساحت و حجم احجام هندسی را نمایش می دهد.

مثلث چندوجهی Császár

چند وجهی Császár یک چند وجهی غیر محدب با 14 صورت مثلثی است.

Conic solids

This animation demonstrates various types of cones and pyramids.

Cylindrical solids

This animation demonstrates various types of cylindrical solids as well as their lateral surfaces.

Grouping of solids

This animation demonstrates various groups of solids through examples.

Grouping of solids 1

This animation demonstrates various groups of solids through examples.

Grouping of solids 2

This animation demonstrates various groups of solids through examples.

Grouping of solids 3

This animation demonstrates various groups of solids through examples.

Grouping of solids 4

This animation demonstrates various groups of solids through examples.

Non-orientable surfaces

The Möbius strip and the Klein bottle are special two-dimensional surfaces with only one side.

Platonic solids

This animation demonstrates the five regular three-dimensional (or Platonic) solids, the best known of which is the cube.

Prisms

This animation demonstrates several types of prisms, from general to regular.

Szilassi polyhedron

This special concave polyhedron was named after a Hungarian mathematician.

Solids of revolution

Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.

Solids of revolution (exercise)

An exercise about the generation of solids of revolution.

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