Question

ABCD and ALMN are squares. Prove that BL=DN​

Answer 1

ALBERT EINSTEIN was born in Ulm, Germany on March14, 1879. After education in Germany, Italy, and Swit-

zerland, and professorships in Bern, Zurich, and Prague, he

was appointed Director of Kaiser Wilhelm Institute for Phy-

sics in Berlin in 1914. He became a professor in the School of

Mathematics at the Institute for Advanced Study in Princeton

beginning the fall of 1933, became an American citizen in the

summer of 1936, and died in Princeton, New Jersey on April

18, 1955. In the Berlin where in 1900 Max Planck discovered

the quantum, Einstein fifteen years later explained to us that

gravitation is not something foreign and mysterious acting

through space, but a manifestation of space geometry itself.