You can
put this solution on YOUR website! .
The rectangles are: 12 by 2 and 8 by 3.
If you know the multiplication table and are trained to quickly multiply numbers in your head MENTALLY,
you will be able to solve the problem and to get the answer in 4 (four) seconds.
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The post-solution note
The unit for area is a " cm^2 " - - - not a " cm ".