From: Roger Stafford on
Quy Vo <nh0c.pr0kut3(a)gmail.com> wrote in message <1490617404.528454.1270803057569.JavaMail.root(a)gallium.mathforum.org>...
> .......
> have a square with 5X5
> in the square have 25 square little
> so how many square and rectriangle in that square 5x5 , .....

When you've finished that task for 5 x 5, do the same problem for a general m by n rectangle of little squares, and give the answer as a single, simple formula in m and n.

Roger Stafford
From: Mark Shore on
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