Difference between Circle and Sphere

What are the major differences between Circle and Sphere?

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When you’re talking about geometry and circles, it’s easy to get confused about the difference between a circle and a sphere. The truth is, they are both round shapes, but that’s where the similarities end.

The main difference is a circle is a two-dimensional shape, while a sphere is a three-dimensional shape.

Before we move to the differences, let’s understand what are Circle and Sphere:

  • Circle: Circles are flat, round figures that are completely enclosed by a line.
  • Sphere: Spheres are three-dimensional, round figures that have no opposite sides.

Now, let’s move to Circle vs Sphere:

Major differences between Circle and Sphere

Circle Sphere
A circle has no thickness. A sphere has an entire inside and outside surface.
Circles can be divided into many equal parts for measuring things like circumference or area. Spheres cannot be divided into equal parts.
A circle also has no volume. A sphere has an entire inside and outside volume.
Circumference of a circle is 2πr. Sphere does not have the circumference.
Examples of circle are coins, CD, wheels etc. Examples of sphere are planets, oranges, globe etc.

That’s it.

Note that sometimes, the question might also be asked as “distinguish between Circle and Sphere”.

Also see:

Final words

We hope you enjoyed this lesson on the differences between a circle and sphere. Remember that a circle is a two-dimensional object, while a sphere is three-dimensional. Both the circle and the sphere are mathematically perfect shapes, but they are different in appearance and meaning.

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