Smartick Try it for free! Abrir el Menú Móvil Try it for free!
Accelerate your child’s learning
Smartick is a fun way to learn math!


Geometric Shapes: Circle

We’ve already seen some of the main geometric shapes in earlier posts. In this post, we’re going to look more in-depth at the circle.

A circle is a geometrical shape that is made by drawing a curve that always has the same distance from the point that we refer to as the center.

In just a little bit, we’re going to learn about the different parts of a circle.


The “length” of the circle is called the circumference.

The only difference between the circumference of the circle and a circle is that the circumference is a numerical value (sometimes with units), and a circle the actual figure that the circumference is measuring.


The center of a circle is the point from which all points on the circle are the same distance.



A radius is a segment drawn from the center of a circle to any point on a circle. 


A chord is a segment drawn from one point on a circle to another point on a circle.


A diameter is a chord that passes through the center of a circle. The diameter of a circle is the length of a diameter of the circle. The diameter is twice as long as the radius.


Was this post on the circle helpful for you? If so, share it so that your friends can know more about this geometric shape, too. We’ll keep looking at geometric shapes in future posts.

If you want to learn about geometry, don’t think twice about creating an account at Smartick!

Learn More:

Fun is our brain’s favorite way of learning
Diane Ackerman
Smartick is a fun way to learn math
  • 15 fun minutes a day
  • Adapts to your child’s level
  • Millions of students since 2009
Share on FacebookTweet about this on TwitterShare on LinkedIn

Add a new public comment to the blog:

The comments that you write here are moderated and can be seen by other users.
For private inquiries please write to [email protected]

Your personal details will not be shown publicly.

I have read and accepted the Privacy and Cookies Policy