Mark M. answered • 04/03/16

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Each m line makes m + 1 rectangles

Each n line makes n + 1 rectangles

Together they make (m + 1)(n + 1) rectangles

Make several drawings with 1, 2, and 3 lines for each of m and n.

Mark M.

Have absolutely no idea.

Let's say there are 2 m lines and 2 n lines. We can see 9 rectangles.

Plugging these values into the "answer:"

(4)(3)(3)(4) / 4

144 / 4

36

There are not 36 rectangles!!!

This is a counterexample to the "answer."

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04/03/16

Charlene C.

04/03/16