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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When can we see the baby?

With all the new technology regarding fertility, an 88-year-old woman was able to give birth to a baby recently.

When she was discharged from the hospital and went home, various relatives came to visit. “May we see the new baby?” one of them asked.

“Not yet,” said the mother. “I'll make coffee and we can visit for a while first.”

Another half hour passed before another relative asked, “May we see the new baby now?”

“No, not yet,” said the mother.

A while later and again the guests asked, “May we see the baby now?”

“No, not yet,” replied the mother.

Growing impatient, they asked, “Well, when can we see the baby?”

“When it cries!” she told them.

"When it cries?” they gasped. “Why do we have to wait until it cries?”

“Because, I forgot where I put it.”

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Conrad von Gesner

Died 13 Dec 1565 at age 49 (born 26 Mar 1516).Swiss physician, naturalist, and encyclopedist is best known for his monumental works. Gesner's aim was to survey all the world's recorded knowledge. His books included systematic compilations of information on animals and plants. Elaborately illustrated , Historiae animalium comprised five volumes, the first appearing in 1551, each covering a portion of the animal kingdom. Gesner's pictures made his works both more appealing and less ambiguous. Although he listed all the animals known in Europe, he had no idea of the relationships one animal to another. Yet, in Historica Plantarum (History of Plants), published two centuries after his death, he was the first to recognize that similar species could be grouped to form genera.Image: The first known illustration of a lead pencil is found in Gesner's book on fossils (1565). [Name sometimes spelled as 'Konrad'.]
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