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Mathematics
Tutor: None Selected Time limit: 1 Day

   When Archimedes estimated π he gave both upper and lower bounds, instead of just giving an estimate. Use his result to calculate upper and lower bounds for the circumference of the earth. How far apart are your answers?

The diameter of the Earth at the equator is about 8000 miles     

 Archimedes: π= 3(10/71) and 3(10/70)

May 2nd, 2015

circumference = 2πr 

for upper bound =  πd = 30/71*8000 = 3380 miles 

for lower bound = πd = 30/70*8000 =3428 miles 



May 2nd, 2015

regarding any doubt let me know 

May 2nd, 2015

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May 2nd, 2015
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May 2nd, 2015
Dec 6th, 2016
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