一道SAT数学,读不懂题
问题描述：
一道SAT数学,读不懂题
The pattern shown above is composed of rectangles.This pattern is used repeatedly to completely cover a rectangular region 12L units long and 10L units wide.How many rectangles of dimension L by W are needed
图就不上了,尤其不明白什么是How many rectangles of dimension L by W are needed
这个L by W怎么讲呢
求指教
答
长乘以宽
by 这里是表示乘
一般表示规格的,也都用by,比如 10 by 10的正方形,就是变成为10的正方形
这题是问你需要长为L,宽为W的长方形多少个
由于没有图,不能帮你解题了,