Circle is one of the most important concepts in Geometry. In this post, I have summarized the discussions about circles.

**The Circle Area and Circumference Series**

1.) **Introduction to the Basic Concepts of Circles** introduces some of the basic concepts on circles including the terminologies used. Here you will know the meaning of radius, diameter, and circumference.

2.) **How to Calculate the Circumference of a Circle** discusses how to calculate the circumference (or the distance around) of the circle.

3.) **How to Calculate the Area of a Circle** discusses how to calculate the area of a circle with different examples.

4.) **Area and Circumference Quiz 1 **is a quiz that will test your knowledge about the discussions in the previous three posts.

5.) **Area and Circumference Quiz 2** (to be posted soon) will test your knowledge on the concepts of circle through problem solving.

In the next math post, we are going to discuss work problems.