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Find the area of the blue re...

Find the area of the blue region accurate up to 3 decimal places. (A=?, a=1732)

Correct answers: 31

The first user who solved this task is Erkain Mahajanian.

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Slowing Down

You know you've reached middle age...
When you're cautioned to slow down by your doctor, instead of by the police.

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Joseph Augustine Cushman

Died 16 Apr 1949 at age 68 (born 31 Jan 1881).U.S. paleontologist and geologist known for his work on paleoecology as shown by Foraminifera (marine protozoans). He was director of Boston Natural History Museum between 1913-23 and director of Cushman Laboratory for Foraminiferal Research in Sharon, Massachusetts in 1923. He was the most well-known foraminiferologist of his time

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