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Find the area of the shaded figure

Express result to the accuracy of 3 decimal.

Correct answers: 51

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math

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Appointment With My Cardiologist

I had an appointment with my cardiologist yesterday and on his door it read 8 to 5.
I left immediately!
Why?
I have to have better odds than that.

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IBM

In 1911, the Computing-Tabulating-Recording Company (CTR) was incorporated, a predecessor of IBM (1924). Earlier, in 1890, Dr. Herman Hollerith had constructed an electromechanical machine using perforated cards for use in the U.S. census, and in 1896 he founded the Tabulating Machine Co. to construct sorting machines. In 1911, CTR was the result of the merger of the Tabulating Company (founded by Hollerith), the Computing Scale Company, and the International Time Recording Company)

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