Questions 11 to 13 are based on the
following passage. At the end of the passage, you will be given 15 seconds to
answer the questions. Now listen to the
passage.
What’s golden ratio
A．Long side: short side = 1.618:1 in a rectangle. B．Perimeter: radius = 1.681:1 in a rotundity. C．Diagonal: side = 1.681:1 in a square. D．Perimeter: long side = 1.681:1 in a rectangle.