When working with circles it is important to recognise and be able to name different parts of the circle. A segment of a circle is an area enclosed by a chord and an arc. What is the name given to a ...

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. Throughout history, circles have symbolized many things: unity, ...

Why is Pi Day celebrated on March 14? Its meaning goes beyond an excuse to eat pie. Here's the significance of the number and how it originated. Pi is simply (well, it’s not really simple, but bear ...