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The Dutch astronomer, Willebrord Snellius, calculated pi to 35 decimal places in the early 17th Century.
To do this we convert 60.5 to a decimal. Move the decimal point over 2 places to the left and you have .605. Now multiply this by 80. The answer is 48.4.One way to remember this is to think of an easy percent such as 50%. This is 1/2 or .5Note that we took 50 and moved the decimal to the left two places.
39 / 50 = 0.78 It would have been quicker and simpler to use your calculator and you could be more certain that the person answering took the question seriously. How do you know I am not messing about?
It took many years to do it, some say 400 years . as it is written by many people in different places like prison, exile and this had to be found put in place , all took a lot of time.
Algebra. I took it in that order, and to do most of the geometry, you HAVE to know algebra. If I had taken geometry first, I would have failed. ALGEBRA FIRST.