小百货1
幼苗
共回答了5个问题 举报
How many rectangles of dimension L by W are needed?
In which, L by Y means L x W.
a pattern is the graph you shows
so,
to cover a 10L x 12L,
there should be 10/(5/3) x 12/(2) = 36 of this pattern, each of which consists of 5 L x W rectangles
Number of WbyL needed: 36 x 5 = 180
1年前
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