Find the length of red arc AB
[2605] Find the length of red arc AB - Find the length of red arc AB (r1=1, r2=2). Express result to the accuracy of 3 decimal. - #brainteasers #math - Correct Answers: 43 - The first user who solved this task is Roxana zavari
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Find the length of red arc AB

Find the length of red arc AB (r1=1, r2=2). Express result to the accuracy of 3 decimal.
Correct answers: 43
The first user who solved this task is Roxana zavari.
#brainteasers #math
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Biggest j*rks

Morton was reading the paper after breakfast when he came across an article about a beautiful actress who was about to marry a football player known primarily for his lack of IQ and common sense.

He turned to his wife with a questioning look on his face and said: "I'll never understand why the biggest j*rks get the most attractive wives."

His wife smiled and replied: "Why thank you, dear!"

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Nail-making machine

In 1796, the second U.S. patent for a machine that combined the operations of nail cutting and heading was issued to George Chandler of Maryland. A month earlier, Isaac Garretson of Pennsylvania was issued the first U.S. patent for a nail cutting and heading machine on 16 Nov 1796. Records of these patents were lost in the Patent Office fire of 1836. Previously, nails had been cut cold since 1777, in Cumberland, Rhode Island. Decades later, Adolph and Felix Brown built the first successful wire nail machine. Their work was supervised by Major Thomas Norton in New York City, where it was put to use by William Hassall in 1851. The availablility of large quantities of inexpensive wire nails made the building boom possible.«
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