sat og里的一道数学题MD百度吞我问题两次了……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 dimensio

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sat og里的一道数学题MD百度吞我问题两次了……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 dimensio

sat og里的一道数学题MD百度吞我问题两次了……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 dimensio
sat og里的一道数学题
MD百度吞我问题两次了……
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?
答案是180,但我只算出来36
因为我怀疑我是不是理解错题目了

sat og里的一道数学题MD百度吞我问题两次了……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 dimensio
此图形由长方形组成.此图形被重复使用以完整覆盖一个长12L宽10L的长方形区域.需要多少个长L宽W的长方形.
由图得知2L=3W,此图形长2L,宽5L/3
为摆出12Lx10L的长方形,必须让5L/3这边重复6遍得到10L,2L这边重复6遍得到12L,所以需要36个图形,每个图形里有5个长方形,一共180个

是180阿，
W=2/3L
五个小长方形拼起来面积是2L*(L+2/3L)=10/3*L^2
总面积=120L^2
120/(10/3)=36
36*5=180

你没有理解错了，你算的大概是是这个图里的一整个方形的面积-10/3L平方。但这个图里有5个小长方形，所以你再把36乘以5就了。就是180.

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