The area of the rectangle is 32 dm2, the width is 4 dm. find the length and perimeter of the rectangle

We know that the area of a rectangle corresponds to the formula: S = a * b. Provided that this value for such a figure is 32 dm², width = 4 dm, we express the length.

To find the first factor, you need to divide the product by the second:

a = S: b = 32: 4 = 8 dm.

The perimeter is the sum of all sides. A rectangle has opposite dimensions equal, therefore, it corresponds to the formula:

P = 2a + 2b = 2 * 8 + 2 * 4 = 16 + 8 = 24 dm.