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4cm*6cm = 24cm² (End face) 24cm²*12cm = 288cm³ (Volume of one cuboid) 288cm³*2 = 576cm³ (Volume of two cuboids)

This is because you are doubling both the length of the rectangle and its width. If it were extended by a factor of 2 in only one direction then its are would be 2A. Extending it in the other dir...

There are several ways to do this which make it particularly interesting. I would advise trying to avoid doing it by eye, this leaves you open to many clumsy mistakes. My preferred method is using equival...

To solve the problem, we will have to find the maximum common denominator (mcd). We decompose the denominator of every fraction obtaining, 2=2; 3=3; 4=2²; 6=2x3. Now, we take the common factors...

First find the difference between the numbers. Do this by subtracting the first number from the second number...

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Double check this to see if this runs true for ...