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Find the area of the green region

Find the area of the green region if area of blue square is 1389. Express result to the accuracy of 3 decimal.

Correct answers: 24

The first user who solved this task is Sanja Šabović.

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The Accident That's About to Happen

Husband: Babe, after work I had an accident. Sabrina took me to the hospital. After various tests, they said I was in a bad state with cervical dislocation, multiple facial injuries. Also, they will have to amputate my right leg.
Wife: Who is Sabrina?

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Stephen Moulton Babcock

Born 22 Oct 1843; died 2 Jul 1931 at age 87.American agricultural chemist, often called the father of scientific dairying, chiefly because of his development of the Babcock test (1890), a simple method of measuring the butterfat content of milk. It consists in liberating the fat globules by dissolving the casein in a strong acid and then separating the fat by means of a centrifuge. The test discouraged milk adulteration and provided for the first time an adequate standard by which fair payment for milk could be determined, stimulated improvement of dairy production, and aided in factory manufacture of cheese and butter. He worked for 43 years at the University of Wisconsin, where he established a laboratory where he carried out pioneering research in nutrition and in the chemistry of vitamins.

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