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
Thomas HodgkinBorn 17 Aug 1798; died 5 Apr 1866 at age 67.English physician and philanthropist who earlydescribed(1832) the malignant disease of lymph tissue that bears his name as Hodgkin's disease. He was the most prominent British pathologist of his time and a pioneer in preventive medicine. At Guy's Hospital, he was responsible for the introduction of the systematic arrangement of pathological and anatomical specimens for teaching purposes. In a strange contrast to his great popularity, above all in London, stands the fact that Hodgkin was denied a professional advancement. More and more disappointed by medicine he became an Oriental traveller, making important contributions. He devoted much of his life to philanthropic causes such as the relief of suffering in under-developed countries and the freeing of slaves. |