Last Activity: 12 Years ago
Archimedes computed upper and lower bounds of π by drawing a regular hexagon inside and outside a circle, and successively doubling the number of sides until he reached a 96-sided regular polygon. By calculating the perimeters of these polygons, he proved that 223/71 < π < 22/7 3.1408 < π < 3.1429. Archimedes'' upper bound of 22/7 may have led to a widespread popular belief that π is equal to 22/7.
rnThe Great Pyramid at Giza, constructed c. 2589–2566 BC, was built with a perimeter of about 1760 cubits and a height of about 280 cubits; the ratio 1760/280 ≈ 6.2857 is approximately equal to 2π ≈ 6.2832.
rnLast Activity: 12 Years ago
BECAUSE PI VALUE IS 22/7
rnBY SIMPLYFIY THIS VALUE WE GET PI VALUE 3.14
Last Activity: 12 Years ago
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679rn
8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196rn
4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273rn7245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094rn3305727036575959195309218611738193261179310511854807446237996274956735188575272489122793818301194912rn
983367336244065664308602139494639522473719070217986094370277053921717629317675238467481846766940513200056812714526356082778577134275778960917363717872rn
14684409012249534301465495853710507922796892589235rn
4201995611212902196086403441815981362977477130996051870721134999999837297804995105973173281609631859rn5024459455346908302642522308253344685035261931188171010003137838752886587533208381420617177669147303rn598253490428755468731159562863882353787593751957781857780532171226806613001927876611195909216420198
Last Activity: 12 Years ago
Archimedes first calculated pi by using successive approximations with a compass. The most accurate
figure he could come up with was best expressed as
the fraction 22/7. However even he knew that he was limited by his crude tools. Pi is an irrational number.
This has been proven mathematically.
That means there is no fraction that can express it
exactly. As a decimal, it does not end or repeat.
pi=3.14159 26535 89793 23846.....
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