Leonardo da Vinci drew a portrait of a young woman. The portrait is shaped like a rectangle. It is 13.5 inches long and 10 inches wide. What is the length of a diagonal that connects one corner of the portrait to the other? Round the answer to the nearest tenth of an inch.
Let x---------------> long side rectangle------------> 13.5 in y---------------> wide side rectangle------------> 10 in d--------------> length of a diagonal
we know applying the Pythagorean theorem d²=x²+y²-----------> d²=13.5²+10²-> d²=282.25 d=√282.25=16.80 in
