In this activity, we use the perimeters of the inscribed and circumscribed polygons to estimate the value of pi.[br]Pi is defined as the ratio: circumference / diameter[br]The circumference of the circle lies between the perimeters of the inscribed and circumscribed polygons.[br][br]Drag the slider to change the number of sides of the polygon.[br]Pay attention to the estimated value of pi.

From this activity, what is the best estimated value of pi?