OG P.154 16/
What is the combined area,in square inches,of the front and back of a rectangluar sheet of paper measuring 8.5inches by 11 inches.
题目无法理解……有没有NN解答一下……
thx
就是让你求一张长方形纸张(8.5inches by 11 inches)的前面和后面的面积总
和,面积要以square inches 做单位.
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