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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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Celebrity pastry chef

Now that I'm a hotshot celebrity pastry chef,
I drive a Studebaker

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First U.S. commercial helicopter license

In 1946, the New York Journal-American newspaper was issued License No. 1 for its helicopter by the Cicil Aeronautics Administration. The helicopter was used for news gathering and delivering photographs. It was a Bell 47B, which had a cruising speed up to 100 m.p.h.«

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