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Fun Geometry Facts for Kids - Interesting Shapes, Trivia & Information


Sphere Facts - Interesting Information about SpheresSphere Facts

Check out our sphere facts and learn some interesting information about spheres, the three dimensional polyhedron shaped like a ball. Find out what a hemisphere is, what makes spheres special and learn some formulas to help you find the area and volume of a sphere.

Read on and enjoy our sphere facts and trivia before taking a look at all our other interesting information devoted to the wonderful world of geometry.



  • A sphere is a perfectly round three dimensional shape similar to a round ball you might play soccer or basketball with.

  • All points on the surface of a sphere are the same distance from the center.

  • A sphere is perfectly symmetrical around its center.

  • The distance from the center of a sphere to its surface is called the radius.

  • The maximum distance through the sphere is called the diameter, it is twice the size of the radius.

  • The value of Pi (π) to 2 decimal places is 3.14, it comes in handy when working out the volume and surface area of a sphere.

  • To find the volume of a sphere you can use the following formula:  Volume = 4/3 π r³
    In an easier to read form: Volume = 4/3 * Pi * r * r * r

  • To find the surface area of a sphere you can use the following formula: Area = 4 π r²
    In an easier to read form: Area = 4 * Pi * r * r

  • Sometimes a sphere is given a north and south pole (found on opposite sides of the surface).

  • An equator is a circle that is the same distance from the north and south poles.

  • A sphere can be divided into two equal hemispheres by a flat two dimensional surface (plane) that passes through the center.

  • The words north pole, south pole, equator and hemispheres are often used when talking about planet Earth even though it isn’t really a sphere, it’s more like a flattened sphere (oblate spheroid).

  • Now that you're an expert on spheres, try learning about 3D polyhedron shapes.

Sphere

Sphere cut in half

 

 

 

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