What Is The Difference Between Circle And Sphere?
Circles and spheres are two geometric figures that share a few similarities yet also have distinct characteristics that set them apart. They are different in a lot of ways. In this article, we'll look at circles and spheres to learn what they are, how they're calculated, and how they differ from one another.
What is a circle?
A circle is a twodimensional figure that is defined by a set of points that are all the same distance from a given point, known as the center. It is considered a type of line with a collection of points and has the property that every point along the line is uniformly spaced from a fixed point on a plane. It is made up of a closed loop that separates its planes into inner and outer sections.
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The center, circumference, tangent, and chord are some of a circle's many characteristics. The lines that connect the radius to its center represent the radius of that specific circular line, and the letter "r" indicates the radius's length.
What is a sphere?
A sphere is a threedimensional version of a circle, with all points on its surface being equidistant from the center. A sphere is also composed of a circumference, tangent, and chord, as well as many other characteristics that are related to the threedimensional shape. The diameter of the sphere is defined as the line joining the faroff edge points. The sphere has no circumference at all. The sphere contains little hemispheres and circles.
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How to calculate the area and volume of circles and spheres?
Area of a Circle = π r2
Area of a Sphere = 4 π r2
(r represents the radius)
A circle has no volume since it is a twodimensional figure.
Volume of a Sphere = 4/3π r3
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Difference between Circle and Sphere

Circle 
Sphere 
Definition 
A planar figure that has all of its points equally spaced from the center. 
A completely round and solid figure in which every point on its surface is equally spaced from the center. 
Dimension 
It is a twodimensional figure. 
It is a three–dimensional figure. 
Components 
Only its surface area can be calculated. 
Both surface area and volume can be calculated. 
Area 
π r² 
4 π r²

Volume 
No volume 
Volume = 4/3 π r³ 
Circumference 
2 π r 
No circumference 
Equation 
(x−a)2+(y−b)2= r2 
(x−h)2+(y−k)2+(z−l)2=r2 
To sum it up, though both being round in shape, circles and spheres are different in every other way. While circles are twodimensional figures that can be measured by their circumference, spheres are threedimensional and require the measurement of their volume.
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