It is once again Pi Day (March 14—which is like the first digits of pi: 3 and 14). Before getting into this year's celebration of pi, let me just summarize some of the most important things about this ...

Forbes contributors publish independent expert analyses and insights. I write about mathematics and its applications The area and perimeter ratios are shown and as n, the number of sides, gets larger ...

The circumference of a circle = \(\pi d\) or \(2\pi r\). Look at the sector of the circle shown below. To calculate the length of the arc, we need to know what fraction of the circle is shown. To do ...

A buddy of mine had an interview and was asked some horrible interview question. He asked me about it afterward, but I wasn't any help. This has been bugging me all ...

To calculate the sector area, first calculate what fraction of a full turn the angle is. Calculate the area of this sector which has a 60° angle to one decimal place. 60° is one sixth of a full turn ...