Here are some pictures of circles in real life application
This is a clock. It has different shapes. Your clock can be a square- shape. But have you notice what’s inside? I have once open a destroyed one. It has a gear inside. Do you know what a gear is? What is its shape? Yes it’s like a circle. Have you seen a gear that has a shape other than circle? Difinitely, you can not see a gear that has a shape other than circle. How important really the circle in our life. Here is types of gear which I have link to image.google.com
I have seen different types of gears.
What is your favorite sports? Games need some equipment, right? Ballgames use ball. Have you ever seen a triangle- shaped ball? or even a square-shape ball? Image in a place with no ball. Are you familiar with what sports does these ball is being used? Try to guess…