Find the area of the black region
[2917] Find the area of the black region - Find the area of the black region accurate up to 3 decimal places. (A=?, a=20, b=10) - #brainteasers #math #riddles - Correct Answers: 39 - The first user who solved this task is Sanja Šabović
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Find the area of the black region

Find the area of the black region accurate up to 3 decimal places. (A=?, a=20, b=10)
Correct answers: 39
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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Fig Leaf Found

A little boy opened the large old family Bible, and he looked with fascination at the ancient pages as he turned them one by one.He was still in Genesis when something fell out of the Bible. He picked it up and looked at it closely. It was a very large old tree leaf that had been pressed between the pages of the Bible long ago."Momma, look what I found!" the boy called out."What do you have there?" his mother asked.With astonishment in his voice, the young boy answered, "I think it's Adam's underwear!"
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William Maclure

Born 27 Oct 1763; died 23 Mar 1840 at age 76. Scottish-American, born to wealth in Ayr, Scotland, William Maclure moved to the U.S. in 1778. He was an educational reformer and a geologist who is known for his geological map - the first true geological map of any part of North America and one of the earliest such maps compiled. Before 1800, he had owned businesses in the new country, traveled extensively in Europe, and joined the American Philosophical Society. Through a number of years, Maclure traveled and resided in France, Italy, Paris, Switzerland, and Spain. When Benjamin Silliman organized the American Geological Society in 1819, Maclure was elected president.
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