Find the area of the shaded figure
[211] Find the area of the shaded figure - Express result to the accuracy of 2 decimal. - #brainteasers #math - Correct Answers: 69 - The first user who solved this task is Djordje Timotijevic
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Find the area of the shaded figure

Express result to the accuracy of 2 decimal.
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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Joan & Bob had been married 50 yrs when...

Joan & Bob had been married 50 yrs when she suggested they take a cruise. "We could go for a week & make wild love like when we were young." He eagerly agreed, went to the pharmacy & bought a bottle of seasick pills & a tube of lubricant. Joan: "The kids are on their own, why not go for a month?" Bob went back & bought 4 bottles of seasick pills & 4 tubes of lubricant. Joan said, "It's our 50th! Let's cruise around the world!" Bob went back & bought bags of seasick pills & lubricant. Pharmacist finally asked, "If it makes you that sick, why do you do it?”
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Jean Perrin

Died 17 Apr 1942 at age 71 (born 30 Sep 1870). Jean-Baptiste Perrin was a French physicist who, in his studies of the Brownian motion of minute particles suspended in liquids, verified Albert Einstein's explanation of this phenomenon and thereby confirmed the atomic nature of matter. Using a gamboge emulsion, Perrin was able to determine by a new method, one of the most important physical constants, Avogadro's number (the number of molecules of a substance in so many grams as indicated by the molecular weight, for example, the number of molecules in two grams of hydrogen). The value obtained corresponded, within the limits of error, to that given by the kinetic theory of gases. For this achievement he was honoured with the Nobel Prize for Physics in 1926.
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