147۰994907 ÷ 2 =73۰99745385. 148۰0140971 ÷ 2 =74۰00704854. The radius of the circle is 74 cm to the nearest cm. Practise pi and working out the circumference of circles with this quiz.
Around 250 B.C., the Greek mathematician Archimedes calculated the ratio of a circle's circumference to its diameter. A precise determination of pi, as we know this ratio today, had long been of ...
Pi is the number you get when you divide a circle's circumference by its diameter. The first digits, 3.14, are well known but the number is infinitely long. Extending the known sequence of digits ...
Additionally, PI broke down from the ascending support trend line for an instant in September (black circle). However, it immediately bounced, reclaiming the trend line shortly afterward.