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sketch and label all possible rectangles with a perimeter of 30 cm and sides whose lengths are whole numbers

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GamerGirl15
its asking you to draw rectangles with sides that equal 30 cm for example 
Ver imagen GamerGirl15
For example, you can draw a rectangle that has two opposite sides of 8, and the other two sides of 7. So they'll add up to be 8+8+7+7, which equals 30 (because the perimeter is all the lengths of the sides added up).