Pi Approximation Day 2022 | Fun Quiz

Pi Approximation Day is observed every year on July 22 all around the world because the value of Pi is denoted by the fraction 22/7, and in the fraction 22/7 which denoted Pi, the numerator 22 symbolizes the date (22nd day of the month) and numerator 7 indicates the month (July).

Some interesting facts about π

• It is a mathematical constant
• It is defined as the ratio of a circle’s circumference to its diameter
• It is approximately equal to 3.14159.
• Its commonly used approximate fraction is 22/7
• Its decimal representation never ends and never settles into a permanently repeating pattern
• It is known as a transcendental number

• Its first 31 digits have no zero, however at position 763 there are six nines in a row, and this is also known as Feynman Point
• It is irrational, was proved by Johann Lambert in 1768
• It is symbolized by π, which was introduced by the Welsh mathematician William Jones in 1706, and has been used regularly in its mathematical sense ever since
• It is an irrational number and it cannot be expressed as a ratio of whole numbers
• It is the never-ending and never-repeating number
• It is also called as the “circular constant”, “Ludolph’s number”, or “Archimedes’ constant”
• It was also proved by Archimedes that the ratio of the area of a circle to the square of its radius is the same constant

• Its 31,415,926,535,897 decimal places were calculated by the computers in the early 21st century and also its two-quadrillionth digit when expressed in binary (0)
• It is used in several mathematical problems consisting of the lengths of arcs or other surfaces like the areas of ellipses, sectors, and other curved surfaces, and the volumes of various solids
• It is also used in several formulas of physics and engineering to describe such periodic phenomena as the motion of pendulums, the vibrations of strings, and alternating electric currents

Here are some more activities one can do to celebrate Pi Day: Link 1; Link 2