OG详解-OG10 数学1 Q22

Choice A is correct. It’s given that the length of each side of a scale model is 1​10​ times the length of the corresponding side of the actual floor of a ballroom. Therefore, the area of the scale model is (110​)^​2 ,  or 1​100​ , times the area of the actual floor of the ballroom. It’s given that the area of the floor of the ballroom is  600 square meters. Therefore, the area, in square meters, of the scale model is(110​0​) (600), or 6.
Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.