Q: Possible rectangles with a perimeter of 18 cm and whole-number lengths of sides?

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You can't tell the dimensions from the perimeter. There are an infinite number of different rectangles, all with different lengths and widths, that all have the same perimeter.

Draw nine rectangles, with the following dimensions:1 by 172 by 163 by 154 by 145 by 136 by 127 by 118 by 109 by 9If you want to get the jump on the next topic coming up in math, thenwhile you're drawing these rectangles, notice that even though theyall have the same perimeter, they all have different areas.

There are an infinite number of rectangles with this perimeter. The "whole number" sides could be (5 x 1), (4 x 2) or (3 x 3), but (5½ x ½) or (3¼ x 2¾) etc would fit the description.

Perimeter = 2 x (width + length)⇒ 12 = 2 x (width + length)⇒ width + length = 6⇒ the rectangles could be:1 by 52 by 43 by 3[A square is a rectangle with equal sides.]

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The answer is, you can draw a rectangle with these measurements: 6cm and 9cm 5cm and 10cm 7cm and 8cm

You can't tell the dimensions from the perimeter. There are an infinite number of different rectangles, all with different lengths and widths, that all have the same perimeter.

Draw nine rectangles, with the following dimensions:1 by 172 by 163 by 154 by 145 by 136 by 127 by 118 by 109 by 9If you want to get the jump on the next topic coming up in math, thenwhile you're drawing these rectangles, notice that even though theyall have the same perimeter, they all have different areas.

Perimeter = 2 x (width + length)⇒ 12 = 2 x (width + length)⇒ width + length = 6⇒ the rectangles could be:1 by 52 by 43 by 3[A square is a rectangle with equal sides.]

There are an infinite number of rectangles with this perimeter. The "whole number" sides could be (5 x 1), (4 x 2) or (3 x 3), but (5½ x ½) or (3¼ x 2¾) etc would fit the description.

These are not similar rectangles so there is no obvious candidate for the ratio. Is it ratio of lengths (sides, perimeter, diameter), or ratio of area?

The question cannot be answered becasue you have not specified what 12 refers to: the area, perimeter, length of longest side, length of shortest side, difference in lengths, digonal, etc. In any case, even if you had, it would probably not have been possible to answer the question since in most cases there are infinitely many possible answers.

The sum of the lengths of the sides of a polygon is called the perimeter.

The perimeter.

Since the question asks about the perimeter, lengths and widths, it is not clear what the 30 feet measure, which is given in the question, refers to! Without that information, it is impossible to answer the question.

The perimeter of a dodecagon is the sum of the lengths of its 12 sides. These sides may be of different lengths.